Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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