APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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