Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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