Cita APA (7th ed.)

(1974). Population and its problems: A plain man's guide. Clarendon Press.

Cita Chicago (17th ed.)

Population and Its Problems: A Plain Man's Guide. Oxford: Clarendon Press, 1974.

Cita MLA (9th ed.)

Population and Its Problems: A Plain Man's Guide. Clarendon Press, 1974.