Luttrell, G. L. W. (1989). Stratigraphic nomenclature of the Newark Supergroup of eastern North America. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationLuttrell, Gwendolyn Lewise Werth. Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America. [Reston, Va.]: Department of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationLuttrell, Gwendolyn Lewise Werth. Stratigraphic Nomenclature of the Newark Supergroup of Eastern North America. Department of the Interior, U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.