APA Citation

Khanna, O., & Khanna, D. D. (2015). General knowledge refresher. New Delhi: Asian Books.

Chicago Style Citation

Khanna, O.P., and Desh Deepak Khanna. General Knowledge Refresher. New Delhi: Asian Books, 2015.

MLA Citation

Khanna, O.P., and Desh Deepak Khanna. General Knowledge Refresher. New Delhi: Asian Books, 2015.

Warning: These citations may not always be 100% accurate.