APA (7th ed.) Citation

Geological Survey (U.S.), Illinois State Geological Survey, Lineback, J. A., Richmond, G. M., & Fullerton, D. S. (1983). Quaternary geologic map of the Chicago 4⁰ x 6⁰ quadrangle, United States. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Illinois State Geological Survey, Jerry Alvin Lineback, Gerald Martin Richmond, and David S. Fullerton. Quaternary Geologic Map of the Chicago 4⁰ X 6⁰ Quadrangle, United States. Reston, Va.: The Survey, 1983.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Quaternary Geologic Map of the Chicago 4⁰ X 6⁰ Quadrangle, United States. The Survey, 1983.