Unesco, Ryding, S., & Rast, W. (1989). The Control of euthrophication of lakes and reservoirs. Published by Unesco and Parthenon.
Chicago-Zitierstil (17. Ausg.)Unesco, Sven-Olof Ryding, und Walter Rast. The Control of Euthrophication of Lakes and Reservoirs. Paris and UK: Published by Unesco and Parthenon, 1989.
MLA-Zitierstil (9. Ausg.)Unesco, et al. The Control of Euthrophication of Lakes and Reservoirs. Published by Unesco and Parthenon, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.