{"source":"book","style":"apa","contributors": [{"function":"author","last":"Markey","first":"Karen"},{"function":"author","last":"Vizine-Goetz","first":"Diane"},{"function":"author","last":"OCLC.,"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Using subject headings for online retrieval : theory, practice, and potential","publisher":"Academic Press","city":"San Diego","year":"1994"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"29390158","isbn":"0122215702 9780122215704"}