Lua APA (7ú heag.)
Birdie, G. S., & Birdie, J. S. (2003). Water supply and sanitary engineering: Including environmental engineering water and Air Pollution Act's. Dhanpat Rai.
Lua i Stíl Chicago (17ú heag.)
Birdie, G. S., agus J. S. Birdie. Water Supply and Sanitary Engineering: Including Environmental Engineering Water and Air Pollution Act's. New Delhi: Dhanpat Rai, 2003.
Lua MLA (9ú heag.)
Birdie, G. S., agus J. S. Birdie. Water Supply and Sanitary Engineering: Including Environmental Engineering Water and Air Pollution Act's. Dhanpat Rai, 2003.
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