Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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