APA (7th ed.) Citation

Southworth, S., & Brezinski, D. K. (1996). Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Southworth, Scott, and David K. Brezinski. Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia. Washington: U.S. G.P.O., 1996.

MLA (9th ed.) Citation

Southworth, Scott, and David K. Brezinski. Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia. U.S. G.P.O., 1996.