APA (7th ed.) Citation

Berryhill, H. L., Jr., & Trippet, A. R. (1980). Map showing nature of shallow subsurface sediments and biogeology in the Port Isabel 1⁰ x 2⁰ quadrangle, Texas. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Berryhill, Henry L., Jr., and Anita R. Trippet. Map Showing Nature of Shallow Subsurface Sediments and Biogeology in the Port Isabel 1⁰ X 2⁰ Quadrangle, Texas. Reston, Va.: U.S. Geological Survey, 1980.

MLA (9th ed.) Citation

Berryhill, Henry L., Jr., and Anita R. Trippet. Map Showing Nature of Shallow Subsurface Sediments and Biogeology in the Port Isabel 1⁰ X 2⁰ Quadrangle, Texas. U.S. Geological Survey, 1980.