APA (7e ed.) Bronvermelding
ebrary, Inc. (1991). Opportunities in the hydrologic sciences. National Academy Press.
Chicago (17e ed.) Bronvermelding
ebrary, Inc. Opportunities in the Hydrologic Sciences. Washington, D.C.: National Academy Press, 1991.
MLA (9e ed.) Bronvermelding
ebrary, Inc. Opportunities in the Hydrologic Sciences. National Academy Press, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.