APA-referens (7:e uppl.)
Birdie, G. S., & Birdie, J. S. (2003). Water supply and sanitary engineering: Including environmental engineering water and Air Pollution Act's. Dhanpat Rai.
Chicago-referens (17:e uppl.)
Birdie, G. S., och J. S. Birdie. Water Supply and Sanitary Engineering: Including Environmental Engineering Water and Air Pollution Act's. New Delhi: Dhanpat Rai, 2003.
MLA-referens (9:e uppl.)
Birdie, G. S., och J. S. Birdie. Water Supply and Sanitary Engineering: Including Environmental Engineering Water and Air Pollution Act's. Dhanpat Rai, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.