Bascom, F., Jonas, A. I., Stose, G. W., & Wherry, E. T. (1931). Geology and mineral resources of the Quakertown-Doylestown district, Pennsylvania and New Jersey. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationBascom, F., Anna I. Jonas, George Willis Stose, and Edgar T. Wherry. Geology and Mineral Resources of the Quakertown-Doylestown District, Pennsylvania and New Jersey. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1931.
MLA (9th ed.) CitationBascom, F., et al. Geology and Mineral Resources of the Quakertown-Doylestown District, Pennsylvania and New Jersey. United States Department of the Interior, Geological Survey, 1931.
Warning: These citations may not always be 100% accurate.