Unesco, Ryding, S., & Rast, W. (1989). The Control of euthrophication of lakes and reservoirs. Published by Unesco and Parthenon.
Цитирование в стиле Чикаго (17-е изд.)Unesco, Sven-Olof Ryding, и Walter Rast. The Control of Euthrophication of Lakes and Reservoirs. Paris and UK: Published by Unesco and Parthenon, 1989.
Цитирование MLA (9-е изд.)Unesco, et al. The Control of Euthrophication of Lakes and Reservoirs. Published by Unesco and Parthenon, 1989.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.