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Dyfyniad Arddull ChicagoJordan, Peter, and Gerald Webbe. Schistosomiasis: Epidemiology, Treatment, and Control. London: William Heinemann Medical Books, 1982.
Dyfyniad MLAJordan, Peter, and Gerald Webbe. Schistosomiasis: Epidemiology, Treatment, and Control. William Heinemann Medical Books, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.