APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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