APA Citation

Sharma O.P. (1990). Textbook of pteridophyta. Delhi: Macmillan.

Chicago Style Citation

Sharma O.P. Textbook of Pteridophyta. Delhi: Macmillan, 1990.

MLA Citation

Sharma O.P. Textbook of Pteridophyta. Delhi: Macmillan, 1990.

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