APA Edition Citation

Bir, S. (1983). Pteridophytes. Today & Tomorrow's Printers Publishers.

Chicago Edition Citation

Bir, Ss. Pteridophytes. New Delhi: Today & Tomorrow's Printers Publishers, 1983.

MLA Edition Citation

Bir, Ss. Pteridophytes. Today & Tomorrow's Printers Publishers, 1983.

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