Update estudios-hispanicos.csl (#5417)

Author: editio

estudios-hispanicos.csl

@@ -144,7 +144,7 @@
   </macro>
   <citation et-al-min="10" et-al-use-first="3" disambiguate-add-year-suffix="true" disambiguate-add-names="true" disambiguate-add-givenname="true" collapse="year">
     <layout prefix="(" suffix=")" delimiter="; ">
-      <group delimiter=", ">
+      <group delimiter=": ">
         <group delimiter=", ">
           <text macro="author-short"/>
           <text macro="year-date"/>