APA (7th ed.) Citation

Geological Survey (U.S.), Missouri. Division of Geology and Land Survey, & Middendorf, M. A. (1991). Bedrock geologic map of the Springfield 1 x 2 quadrangle, Missouri. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Missouri. Division of Geology and Land Survey, and Mark A. Middendorf. Bedrock Geologic Map of the Springfield 1 X 2 Quadrangle, Missouri. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Bedrock Geologic Map of the Springfield 1 X 2 Quadrangle, Missouri. The Survey, 1991.