Agarwal, K. (1996). Environmental biology 1996-1997 (Revised Second Edition.). Agro Botanical Publishers.
Chicago Style aipamenaAgarwal, K.C. Environmental Biology 1996-1997. Revised Second Edition. Bikaner: Agro Botanical Publishers, 1996.
MLA aipamenaAgarwal, K.C. Environmental Biology 1996-1997. Revised Second Edition. Agro Botanical Publishers, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.