{"source":"book","style":"apa","contributors": [{"function":"author","last":"Goodchild","first":"Michael","middle":"F"},{"function":"author","last":"Kemp","first":"Karen","middle":"K"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Technical issues in GIS : NCGIA core curriculum","publisher":"University of California, National Center for geographic Information and Analysis","city":"Santa Barbara","year":"1992"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"439631702"}