Dyfyniad APA

Calhoun, J. B. (1983). Environment and population: Problems of adaptation. Praeger.

Dyfyniad Arddull Chicago

Calhoun, John B. Environment and Population: Problems of Adaptation. New York: Praeger, 1983.

Dyfyniad MLA

Calhoun, John B. Environment and Population: Problems of Adaptation. Praeger, 1983.

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