Dyfyniad APA
Pandey,G.N, & Carney,G.C. (1989). Environmental Engineering. Tata McGRAW-Hill.
Dyfyniad Arddull Chicago
Pandey,G.N, and Carney,G.C. Environmental Engineering. New Delhi: Tata McGRAW-Hill, 1989.
Dyfyniad MLA
Pandey,G.N, and Carney,G.C. Environmental Engineering. Tata McGRAW-Hill, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.