APA
Garg S.K, . (1990). Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
Chicago
Garg S.K, . 1990. Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
Harvard
Garg S.K, . (1990). Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi.
MLA
Garg S.K, . Sewage Disposal and Air Pollution Engineering. New Delhi: Khanna Publications,New Delhi. 1990.