APA (7th ed.) Citation

Decker, D. (2001). GIS data sources. Wiley.

Chicago Style (17th ed.) Citation

Decker, Drew. GIS Data Sources. New York [u.a.]: Wiley, 2001.

MLA (9th ed.) Citation

Decker, Drew. GIS Data Sources. Wiley, 2001.

Warning: These citations may not always be 100% accurate.