Chopra , R., & Kumra , P. (1988). Biology of bryophytes. Wiley Eastern Limited.
Chicago-čujuhus (17. p.)Chopra , R.N, juo P.K Kumra. Biology of Bryophytes. New Delhi: Wiley Eastern Limited, 1988.
MLA-čujuhus (9. p.)Chopra , R.N, juo P.K Kumra. Biology of Bryophytes. Wiley Eastern Limited, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.