Rana, S. V. S. (2005). Essentials of Ecology and Environmental Science (2nd ed.). Prentice Hall.
Chicago-čujuhus (17. p.)Rana, S. V. S. Essentials of Ecology and Environmental Science. 2nd ed. New Delhi: Prentice Hall, 2005.
MLA-čujuhus (9. p.)Rana, S. V. S. Essentials of Ecology and Environmental Science. 2nd ed. Prentice Hall, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.