Freeman, V. L., & Hilpert, L. S. (1956). Stratigraphy of the Morrison formation in part of northwestern New Mexico. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationFreeman, Val L., and Lowell S. Hilpert. Stratigraphy of the Morrison Formation in Part of Northwestern New Mexico. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1956.
MLA (9th ed.) CitationFreeman, Val L., and Lowell S. Hilpert. Stratigraphy of the Morrison Formation in Part of Northwestern New Mexico. United States Department of the Interior, Geological Survey, 1956.
Warning: These citations may not always be 100% accurate.