Dyfyniad APA

(1986). Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth.

Dyfyniad Arddull Chicago

Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth, 1986.

Dyfyniad MLA

Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth, 1986.

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