Daniels, P. A., & Onuschak, E. (1974). Geology of the Studley, Yellow Tavern, Richmond, and Seven Pines quadrangles, Virginia. [publisher not identified].
Chicago Style (17th ed.) CitationDaniels, Paul A., and Emil Onuschak. Geology of the Studley, Yellow Tavern, Richmond, and Seven Pines Quadrangles, Virginia. Charlottesville : Virginia Division of Mineral Resources: [publisher not identified], 1974.
MLA (9th ed.) CitationDaniels, Paul A., and Emil Onuschak. Geology of the Studley, Yellow Tavern, Richmond, and Seven Pines Quadrangles, Virginia. [publisher not identified], 1974.
Warning: These citations may not always be 100% accurate.