Dyfyniad APA

Lassonde, L., & Grayston, G. (1997). Coping with population challenges. Earthscan.

Dyfyniad Arddull Chicago

Lassonde, Louise, and Graham Grayston. Coping with Population Challenges. London: Earthscan, 1997.

Dyfyniad MLA

Lassonde, Louise, and Graham Grayston. Coping with Population Challenges. Earthscan, 1997.

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