Dyfyniad APA

Singh, P. (1985). Enivronmental pollution and management. Chugh.

Dyfyniad Arddull Chicago

Singh, Pramod. Enivronmental Pollution and Management. Allahabad: Chugh, 1985.

Dyfyniad MLA

Singh, Pramod. Enivronmental Pollution and Management. Chugh, 1985.

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