Não informado. (1987). Journal of the Institution of Water and Environmental Management. Institution of Water and Environmental Management.
Chicago (17e ed.) BronvermeldingNão informado. Journal of the Institution of Water and Environmental Management. London: Institution of Water and Environmental Management, 1987.
MLA (8e ed.) BronvermeldingNão informado. Journal of the Institution of Water and Environmental Management. Institution of Water and Environmental Management, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.