APA (7th ed.) Zitazioa
Bolstad, P. (2016). GIS fundamentals: A first text on geographic information systems (5th ed.). XanEdu Eider Press.
Chicago Style (17th ed.) Zitazioa
Bolstad, Paul. GIS Fundamentals: A First Text on Geographic Information Systems. 5th ed. Acton, MA : White Bear Lake, Minnesota: XanEdu Eider Press, 2016.
MLA (9th ed.) Zitazioa
Bolstad, Paul. GIS Fundamentals: A First Text on Geographic Information Systems. 5th ed. XanEdu Eider Press, 2016.
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