Dyfyniad APA

Leong, G. C., & Morgan,Gillian C. (1982). Human and economic geography (2nd.). OUP.

Dyfyniad Arddull Chicago

Leong, Goh Cheng, and Morgan,Gillian C. Human and Economic Geography. 2nd. Oxford: OUP, 1982.

Dyfyniad MLA

Leong, Goh Cheng, and Morgan,Gillian C. Human and Economic Geography. 2nd. OUP, 1982.

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