APA (7th ed.) Citation

Geological Survey (U.S.) & Liberian Geological Survey. (1972). Geographic map of the Gbanka quadrangle, Liberia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Liberian Geological Survey. Geographic Map of the Gbanka Quadrangle, Liberia. Reston, Va.: U.S. Geological Survey, 1972.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Liberian Geological Survey. Geographic Map of the Gbanka Quadrangle, Liberia. U.S. Geological Survey, 1972.

Warning: These citations may not always be 100% accurate.