APA (7th ed.) Citation

Geological Survey (U.S.), Arkansas Geological Commission, Mugel, D. N., & Pratt, W. P. (1991). Lithologic cross sections of phanerozoic rocks in the northern midcontinent, U.S.A. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Arkansas Geological Commission, Douglas N. Mugel, and Walden P. Pratt. Lithologic Cross Sections of Phanerozoic Rocks in the Northern Midcontinent, U.S.A. Reston, Va.: U.S. Geological Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Lithologic Cross Sections of Phanerozoic Rocks in the Northern Midcontinent, U.S.A. U.S. Geological Survey, 1991.