Dyfyniad APA

RA Malviya. (1987). Environmental pollution and its control. Chugh publications.

Dyfyniad Arddull Chicago

RA Malviya. Environmental Pollution and Its Control. Allahabad: Chugh publications, 1987.

Dyfyniad MLA

RA Malviya. Environmental Pollution and Its Control. Chugh publications, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.