APA (7th ed.) Citation

Geological Survey (U.S.), Jordan, P. R., & Combs, L. J. (1996). Summary of floods in the United States during 1990 and 1991. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Paul Robert Jordan, and L. J. Combs. Summary of Floods in the United States During 1990 and 1991. [Washington, D.C.?]: U.S. G.P.O., 1996.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Summary of Floods in the United States During 1990 and 1991. U.S. G.P.O., 1996.