Citazione Stile APA (7a Edizione)

Unesco, Ryding, S., & Rast, W. (1989). The Control of euthrophication of lakes and reservoirs. Published by Unesco and Parthenon.

Citazione stile Chigago Style (17a edizione)

Unesco, Sven-Olof Ryding, e Walter Rast. The Control of Euthrophication of Lakes and Reservoirs. Paris and UK: Published by Unesco and Parthenon, 1989.

Citatione MLA (9a ed.)

Unesco, et al. The Control of Euthrophication of Lakes and Reservoirs. Published by Unesco and Parthenon, 1989.