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Hydrogeology of the Cenozoic igneous rocks, Navajo and Hopi Indian Reservations Arizona, New Mexico, and Utah
Navajo Tribe of Arizona, New Mexico & Utah
18 pages : illustrations, 2 folded, part color maps (in pocket) ; 30 cm.
by J. P. Akers, J. C. Shorty, and P. R. Stevens. Prepared in cooperation with the Bureau of Indian Affairs and the Navajo Tribe.
Hydrogeology of the Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah
Geological Survey professional paper ; 521-D