APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.