APA (7th ed.) Citation

Harris, L. D., & Mixon, R. B. (1970). Geologic map of the Howard Quarter quadrangle, Northeastern Tennessee. The Survey.

Chicago Style (17th ed.) Citation

Harris, Leonard D., and Robert B. Mixon. Geologic Map of the Howard Quarter Quadrangle, Northeastern Tennessee. Reston, Va.: The Survey, 1970.

MLA (9th ed.) Citation

Harris, Leonard D., and Robert B. Mixon. Geologic Map of the Howard Quarter Quadrangle, Northeastern Tennessee. The Survey, 1970.