Dyfyniad APA

Weeks,John Robert. (1996). Population: An introduction to concepts and issues (6.). Wadsworth.

Dyfyniad Arddull Chicago

Weeks,John Robert. Population: An Introduction to Concepts and Issues. 6. Belmont: Wadsworth, 1996.

Dyfyniad MLA

Weeks,John Robert. Population: An Introduction to Concepts and Issues. 6. Wadsworth, 1996.

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