Austin, Tex. : U.S. Dept. of the Interior, Geological Survey ; Denver, CO : Open-File Services Section, Branch of Distribution, U.S. Geological Survey, 1983.
Austin, Tex. : U.S. Dept. of the Interior, Geological Survey ; Denver, Colo. : Open-File Services Section, Western Distribution Branch, 1984 [i.e. 1986]
Austin, Tex. : U.S. Dept. of the Interior, Geological Survey ; Denver, CO : For sale by Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1983 (1985 printing)