APA Alıntı

Kumra, V. K., Nag, P., & Singh, J. Geography and environment.

Chicago Stili Alıntı

Kumra, V K., Prithvish Nag, ve Jagadish Singh. Geography and Environment. New Delhi, Concept Publishing Company.

MLA Alıntı

Kumra, V K., et al. Geography and Environment.