Chopra , R., & Kumra , P. (1988). Biology of bryophytes. Wiley Eastern Limited.
Lua i Stíl Chicago (17ú heag.)Chopra , R.N, agus P.K Kumra. Biology of Bryophytes. New Delhi: Wiley Eastern Limited, 1988.
Lua MLA (9ú heag.)Chopra , R.N, agus P.K Kumra. Biology of Bryophytes. Wiley Eastern Limited, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.