Dyfyniad APA

Arora, R. (1999). Air pollution: Causes and effective control. Mangal Deep.

Dyfyniad Arddull Chicago

Arora, R.K. Air Pollution: Causes and Effective Control. Jaipur: Mangal Deep, 1999.

Dyfyniad MLA

Arora, R.K. Air Pollution: Causes and Effective Control. Mangal Deep, 1999.

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