APA (7th ed.) Zitazioa

Gurcharan singh. (2007). Water supply and senitary Engineering. Nem Chand Jain.

Chicago Style (17th ed.) Zitazioa

Gurcharan singh. Water Supply and Senitary Engineering. New Delhi: Nem Chand Jain, 2007.

MLA (9th ed.) Zitazioa

Gurcharan singh. Water Supply and Senitary Engineering. Nem Chand Jain, 2007.