APA (7e ed.) Bronvermelding

U.S. Geological Survey. Summary of floods in the United States. U.S. Government Printing Office.

Chicago (17e ed.) Bronvermelding

U.S. Geological Survey. Summary of Floods in the United States. Washington, D. C: U.S. Government Printing Office.

MLA (9e ed.) Bronvermelding

U.S. Geological Survey. Summary of Floods in the United States. U.S. Government Printing Office.

Let op: Deze citaties zijn niet altijd 100% accuraat.