APA ציטוט

Purohit, S. S., & Agrawal, A. K. (2004). Ecology and environmental biology. Mrs.Sarswati Purohit.

Chicago Edition Citation

Purohit, S. S., and Ashok K. Agrawal. Ecology and Environmental Biology. Jodhpur: Mrs.Sarswati Purohit, 2004.

ציטוט MLA

Purohit, S. S., and Ashok K. Agrawal. Ecology and Environmental Biology. Mrs.Sarswati Purohit, 2004.