APA (7th ed.) Citation
Kumra, V. K., Nag, P., & Singh, J. (1997). Geography and environment. Concept Publishing.
Chicago Style (17th ed.) Citation
Kumra, V. K., Prithvish Nag, and Jagdish Singh. Geography and Environment. New Delhi: Concept Publishing, 1997.
MLA (9th ed.) Citation
Kumra, V. K., et al. Geography and Environment. Concept Publishing, 1997.
Warning: These citations may not always be 100% accurate.