APA (7th ed.) Zitazioa

Edited by Sinha, V. N. P. (1980). Recent trends and concepts in geography. Concept.

Chicago Style (17th ed.) Zitazioa

Edited by Sinha, Vishwa Nath Prasad. Recent Trends and Concepts in Geography. New Delhi: Concept, 1980.

MLA (9th ed.) Zitazioa

Edited by Sinha, Vishwa Nath Prasad. Recent Trends and Concepts in Geography. Concept, 1980.