International Symposium on Eutrophication University of Wisconsin & National Academy of Sciences (U.S.). (1969). Eutrophication: Causes, consequences, correctives; proceedings of a symposium. National Academy of Sciences.
Dyfyniad Arddull ChicagoInternational Symposium on Eutrophication University of Wisconsin and National Academy of Sciences (U.S.). Eutrophication: Causes, Consequences, Correctives; Proceedings of a Symposium. Washington: National Academy of Sciences, 1969.
Dyfyniad MLAInternational Symposium on Eutrophication University of Wisconsin and National Academy of Sciences (U.S.). Eutrophication: Causes, Consequences, Correctives; Proceedings of a Symposium. National Academy of Sciences, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.