APA (7th ed.) Citation

Datta, S. C. (1992). An introduction to gymnosperms (4th ed.). Kalyani Publishers.

Chicago Style (17th ed.) Citation

Datta, Subhash Chandra. An Introduction to Gymnosperms. 4th ed. New Delhi: Kalyani Publishers, 1992.

MLA (9th ed.) Citation

Datta, Subhash Chandra. An Introduction to Gymnosperms. 4th ed. Kalyani Publishers, 1992.