APA (7th ed.) Citation

Das, A. (2011). Lectures on gravitation. World Scientific Pub. Co.

Chicago Style (17th ed.) Citation

Das, Ashok. Lectures on Gravitation. Singapore: World Scientific Pub. Co, 2011.

MLA (9th ed.) Citation

Das, Ashok. Lectures on Gravitation. World Scientific Pub. Co, 2011.

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