APA (7th ed.) Citation

Gupta, R. C. (1980). Theory of Relativity. Prentice-Hall of India.

Chicago Style (17th ed.) Citation

Gupta, R. C. Theory of Relativity. New Delhi: Prentice-Hall of India, 1980.

MLA (9th ed.) Citation

Gupta, R. C. Theory of Relativity. Prentice-Hall of India, 1980.