Cita APA (7a ed.)

IWA. (2001). River water quality model. no 1. IWA Publishing.

Cita Chicago Style (17a ed.)

IWA. River Water Quality Model. No 1. London: IWA Publishing, 2001.

Cita MLA (9a ed.)

IWA. River Water Quality Model. No 1. IWA Publishing, 2001.