APA aipamena

Worboys, M., & Duckham, M. (2004). GIS: A computing perspective. CRC press.

Chicago Style aipamena

Worboys, Michael, and Matt Duckham. GIS: A Computing Perspective. New York: CRC press, 2004.

MLA aipamena

Worboys, Michael, and Matt Duckham. GIS: A Computing Perspective. CRC press, 2004.