Dyfyniad APA
ebrary, Inc, & Gregory, D. (2009). The dictionary of human geography (5th ed.). Blackwell.
Dyfyniad Arddull Chicago
ebrary, Inc, and Derek Gregory. The Dictionary of Human Geography. 5th ed. Malden, MA: Blackwell, 2009.
Dyfyniad MLA
ebrary, Inc, and Derek Gregory. The Dictionary of Human Geography. 5th ed. Blackwell, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.