1. Geologic framework of the ground-water system in Jurassic and Cretaceous rocks in the northern Great Plains, in parts of Montana, North Dakota, South Dakota, and Wyoming Author/Creator: Anna, Lawrence O., author Publication/Creation: Washington : Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading
2. Geologic framework of the ground-water system in Jurassic and Cretaceous rocks in the northern Great Plains, in parts of Montana, North Dakota, South Dakota, and Wyoming Author/Creator: Anna, Lawrence O. Publication/Creation: For sale by the Distribution Branch, U.S. Geological Survey Resource Type: Book Access & Availability: Loading