Cita APA (7a ed.)

International Association on Water Pollution Research and Control. (1991). The 6th iawprc conference on design and operation of large wastewater. [s.n.].

Cita Chicago Style (17a ed.)

International Association on Water Pollution Research and Control. The 6th Iawprc Conference on Design and Operation of Large Wastewater. Prague: [s.n.], 1991.

Cita MLA (9a ed.)

International Association on Water Pollution Research and Control. The 6th Iawprc Conference on Design and Operation of Large Wastewater. [s.n.], 1991.