Não informado. (1963). Hydrology papers. Colorado State University.
Chicago (17e ed.) BronvermeldingNão informado. Hydrology Papers. Fort Collins, Colo: Colorado State University, 1963.
MLA (8e ed.) BronvermeldingNão informado. Hydrology Papers. Colorado State University, 1963.
Let op: Deze citaties zijn niet altijd 100% accuraat.