Cita APA (7th ed.)

(1962). The problems of the arid zone: Proceedings of the Paris Symposium. UNESCO.

Cita Chicago (17th ed.)

The Problems of the Arid Zone: Proceedings of the Paris Symposium. París: UNESCO, 1962.

Cita MLA (9th ed.)

The Problems of the Arid Zone: Proceedings of the Paris Symposium. UNESCO, 1962.