APA (7th ed.) Zitazioa

(1968). Developing countries of the Vorld. Bational Committee for Geography.

Chicago Style (17th ed.) Zitazioa

Developing Countries of the Vorld. Calcutta: Bational Committee for Geography, 1968.

MLA (9th ed.) Zitazioa

Developing Countries of the Vorld. Bational Committee for Geography, 1968.