Tohutoro APA (7th ed.)
Punmia. B. C & Jain, A. K. (1998). Wastewater engineering: Including air pollution (2nd ed.). Laxmi Pub.
Tohutoru Kātū Chicago (17th ed.)
Punmia. B. C me Arun Kumar/Jain Jain. Wastewater Engineering: Including Air Pollution. 2nd ed. Kolkata: Laxmi Pub, 1998.
Tohutoro MLA (9th ed.)
Punmia. B. C me Arun Kumar/Jain Jain. Wastewater Engineering: Including Air Pollution. 2nd ed. Laxmi Pub, 1998.
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