APA (7th ed.) Citation

Gupta, S. M. (1978). Birbal Sahni. National Book Trust, India.

Chicago Style (17th ed.) Citation

Gupta, Shakti M. Birbal Sahni. National Book Trust, India, 1978.

MLA (9th ed.) Citation

Gupta, Shakti M. Birbal Sahni. National Book Trust, India, 1978.

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