APA (7th ed.) Citation

Colvin, J. M., & Marcher, M. V. (1964). Geologic map of the Gordonsburg quadrangle, Tennessee. Division of Geology.

Chicago Style (17th ed.) Citation

Colvin, John M., and Melvin V. Marcher. Geologic Map of the Gordonsburg Quadrangle, Tennessee. Nashville, Tenn.: Division of Geology, 1964.

MLA (9th ed.) Citation

Colvin, John M., and Melvin V. Marcher. Geologic Map of the Gordonsburg Quadrangle, Tennessee. Division of Geology, 1964.