APA ציטוט

K.C.Agrawal. (1999). Environmental biology (1st.). Agro Botanica.

Chicago Edition Citation

K.C.Agrawal. Environmental Biology. 1st. Bikaner: Agro Botanica, 1999.

ציטוט MLA

K.C.Agrawal. Environmental Biology. 1st. Agro Botanica, 1999.