Cita APA

 Ratnayaka, D. D. (2009).  Water supply.  IWA Publishing.

Chicago Style Citation

 Ratnayaka, Don D.  Water Supply.  IWA Publishing, 2009.

Cita MLA

 Ratnayaka, Don D.  Water Supply.  IWA Publishing, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.