Lua APA (7ú heag.)
Keranen, K., & Kolvoord, R. (2012). Making spatial decisions using GIS: A workbook (2nd ed.). ESRI Press.
Lua i Stíl Chicago (17ú heag.)
Keranen, Kathryn, agus Robert Kolvoord. Making Spatial Decisions Using GIS: A Workbook. 2nd ed. Redlands, Calif.: ESRI Press, 2012.
Lua MLA (9ú heag.)
Keranen, Kathryn, agus Robert Kolvoord. Making Spatial Decisions Using GIS: A Workbook. 2nd ed. ESRI Press, 2012.
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