Cita APA (7a ed.)

Chopra , R., & Kumra , P. (1988). Biology of bryophytes. Wiley Eastern Limited.

Cita Chicago Style (17a ed.)

Chopra , R.N, y P.K Kumra. Biology of Bryophytes. New Delhi: Wiley Eastern Limited, 1988.

Cita MLA (9a ed.)

Chopra , R.N, y P.K Kumra. Biology of Bryophytes. Wiley Eastern Limited, 1988.