Dyfyniad APA

Wilson, J. P., & Fotheringham, A. S. (2008). handbook of geographic information science. Blackwell Publishing.

Dyfyniad Arddull Chicago

Wilson, John P., and A. Stewart Fotheringham. Handbook of Geographic Information Science. Malden, USA: Blackwell Publishing, 2008.

Dyfyniad MLA

Wilson, John P., and A. Stewart Fotheringham. Handbook of Geographic Information Science. Blackwell Publishing, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.