APA
Garg S.K, Garg R, . (1999). Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
Chicago
Garg S.K, Garg R, . 1999. Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
Harvard
Garg S.K, Garg R, . (1999). Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
MLA
Garg S.K, Garg R, . Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi. 1999.