Colorado, Iowa, Minnesota, Nebraska, & Wyoming. (1969). Surface water supply of the United States 1961-65. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationColorado, Iowa, Minnesota, Nebraska, and Wyoming. Surface Water Supply of the United States 1961-65. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1969.
MLA (9th ed.) CitationColorado, et al. Surface Water Supply of the United States 1961-65. United States Department of the Interior, Geological Survey, 1969.
Warning: These citations may not always be 100% accurate.