diff --git a/csl/science.csl b/csl/science.csl
new file mode 100644
index 000000000..4a8fe5294
--- /dev/null
+++ b/csl/science.csl
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" xml:lang="en" class="in-text" >
+  <info>
+    <title>Science journal format</title>
+    <id>http://www.zotero.org/styles/science</id>
+    <link>http://www.zotero.org/styles/science</link>
+    <author>
+      <name>Julian Onions</name>
+      <email>julian.onions@gmail.com</email>
+    </author>
+    <category term="author-date"/>
+    <updated/>
+    <summary>The Science journal style.</summary>
+    <source>http://www.sciencemag.org/about/authors/prep/res/refs.dtl</source>
+  </info>
+  <macro name="editor">
+    <names variable="editor" prefix="" suffix="" delimiter=", ">
+      <name initialize-with=". " delimiter=", " delimiter-precedes-last="always"/>
+      <label form="short" prefix=", " text-transform="capitalize" suffix="."/>
+    </names>
+  </macro>
+  <macro name="author">
+    <names variable="author">
+      <name  sort-separator=", " initialize-with=". "
+	     delimiter=", " delimiter-precedes-last="always"/>
+      <label form="short" prefix=", " suffix="." text-transform="capitalize"/>
+      <substitute>
+	<names variable="editor"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="access">
+    <text variable="URL"/>
+  </macro>
+  <macro name="title">
+    <choose>
+      <if type="book">
+	<text variable="title" font-style="italic"/>
+      </if>
+      <else>
+	<text variable="title"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <group delimiter=", ">
+      <text variable="publisher"/>
+      <text variable="publisher-place"/>
+    </group>
+  </macro>
+  <macro name="volume">
+     <text variable="volume" prefix="vol. "/>
+  </macro>
+  <macro name="pages">
+    <label variable="page" form="short" suffix=". "/>
+    <text variable="page"/>
+  </macro>
+  <macro name="issued">
+	      <date variable="issued" delimiter=" ">
+		<date-part name="month" form="long" suffix=" "/>
+		<date-part name="year"/>
+	      </date>
+  </macro>
+  <citation>
+    <option name="collapse" value="citation-number"/>
+    <layout prefix="(" suffix=")" delimiter=", " font-style="italic">
+      <text variable="citation-number" />
+    </layout>
+  </citation>
+  <bibliography>
+    <option name="hanging-indent" value="false"/>
+    <option name="et-al-min" value="5"/>
+    <option name="et-al-use-first" value="1"/>
+    <layout suffix=".">
+      <text variable="citation-number" suffix=". "/>
+      <text macro="author" suffix=", "/>
+      <choose>
+	<if type="thesis">
+	  <text value="thesis, "/>
+	  <text macro="publisher"/>
+	  <text macro="issued" prefix=" (" suffix=")"/>
+	</if>
+	<else-if type="book">
+	  <group>
+	    <text macro="title" prefix=" "/>
+	    <text macro="editor" prefix=" "/>
+	  </group>
+	  <group prefix=" (" suffix=")" delimiter=", ">
+	    <text macro="publisher"/>
+	    <text variable="edition"/>
+	    <text macro="issued"/>
+	  </group>
+	  <text macro="pages" prefix=", "/>
+	</else-if>
+	<else-if type="chapter">
+	  <group class="container" prefix=" ">
+	    <text term="in" text-transform="lowercase"/>
+	    <text variable="container-title" font-style="italic" prefix=" " suffix=","/>
+	    <text variable="collection-title" prefix=" " suffix="."/>
+	    <text macro="editor" prefix=" "/>
+	    <group prefix=" (" suffix=")" delimiter=", ">
+	      <text macro="publisher" />
+	      <text macro="issued"/>
+	    </group>
+	  </group>
+	  <group delimiter=", " prefix=", ">
+	    <text macro="volume"/>
+	    <text macro="pages"/>
+	  </group>
+	</else-if>
+	<else>
+	  <group suffix=".">
+	    <text macro="editor" prefix=" "/>
+	  </group>
+	  <group class="container" prefix=" ">
+	    <text variable="container-title" font-style="italic" suffix=". "/>
+	    <text variable="volume" font-weight="bold"/>
+	    <text variable="page" prefix=", "/>
+	  </group>
+ 	  <text macro="issued" prefix=" (" suffix=")"/>
+	</else>
+      </choose>
+      <text prefix=" " macro="access" suffix="."/>
+    </layout>
+  </bibliography>
+</style>