Agarwal, K. (1996). Environmental biology 1996-1997 (Revised Second Edition.). Agro Botanical Publishers.
Chicago-čujuhus (17. p.)Agarwal, K.C. Environmental Biology 1996-1997. Revised Second Edition. Bikaner: Agro Botanical Publishers, 1996.
MLA-čujuhus (9. p.)Agarwal, K.C. Environmental Biology 1996-1997. Revised Second Edition. Agro Botanical Publishers, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.