APA-čujuhus (7. p.)
De, D., & De, D. (2010). Fundamentals of environment and ecology. S. Chand.
Chicago-čujuhus (17. p.)
De, Debapriya, juo Debasish De. Fundamentals of Environment and Ecology. Kolkata: S. Chand, 2010.
MLA-čujuhus (9. p.)
De, Debapriya, juo Debasish De. Fundamentals of Environment and Ecology. S. Chand, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.