APA (7th ed.) Citation

Ajit Kumar Sharma. (2014). An introduction to astrophysics. DPH.

Chicago Style (17th ed.) Citation

Ajit Kumar Sharma. An Introduction to Astrophysics. New Delhi: DPH, 2014.

MLA (9th ed.) Citation

Ajit Kumar Sharma. An Introduction to Astrophysics. DPH, 2014.

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