APA (7th ed.) Citation

Behrendt, J. C., & Wotorson, C. S. (1974). Simple Bouguer gravity map of the Monrovia quadrangle, Liberia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Behrendt, John C., and Cletus S. Wotorson. Simple Bouguer Gravity Map of the Monrovia Quadrangle, Liberia. Reston, Va.: U.S. Geological Survey, 1974.

MLA (9th ed.) Citation

Behrendt, John C., and Cletus S. Wotorson. Simple Bouguer Gravity Map of the Monrovia Quadrangle, Liberia. U.S. Geological Survey, 1974.