APA

Punmia (B C); Jain (Ashok K), . (2003). Environmental Engineering-2: Wastewater Engineering (Including Air Pollution). : .

Chicago

Punmia (B C); Jain (Ashok K), . 2003. Environmental Engineering-2: Wastewater Engineering (Including Air Pollution). : .

Harvard

Punmia (B C); Jain (Ashok K), . (2003). Environmental Engineering-2: Wastewater Engineering (Including Air Pollution). : .

MLA

Punmia (B C); Jain (Ashok K), . Environmental Engineering-2: Wastewater Engineering (Including Air Pollution). : . 2003.