Unesco, Ryding, S., & Rast, W. (1989). The Control of euthrophication of lakes and reservoirs. Published by Unesco and Parthenon.
Chicago Style (17. basım) AtıfUnesco, Sven-Olof Ryding, ve Walter Rast. The Control of Euthrophication of Lakes and Reservoirs. Paris and UK: Published by Unesco and Parthenon, 1989.
MLA (9th ed.) AtıfUnesco, et al. The Control of Euthrophication of Lakes and Reservoirs. Published by Unesco and Parthenon, 1989.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..