APA (7th ed.) Citation

Malde, H. E. (1955). Surficial geology of the Louisville quadrangle, Colorado. [United States Department of the Interior, Geological Survey].

Chicago Style (17th ed.) Citation

Malde, Harold E. Surficial Geology of the Louisville Quadrangle, Colorado. [Washington, D.C.]: [United States Department of the Interior, Geological Survey], 1955.

MLA (9th ed.) Citation

Malde, Harold E. Surficial Geology of the Louisville Quadrangle, Colorado. [United States Department of the Interior, Geological Survey], 1955.