APA aipamena

Decker, D. (2001). GIS data sources. New York : |b J. , |c c2001: Wiley.

Chicago Style aipamena

Decker, Drew. GIS Data Sources. New York : |b J. , |c c2001: Wiley, 2001.

MLA aipamena

Decker, Drew. GIS Data Sources. New York : |b J. , |c c2001: Wiley, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.