APA (7th ed.) Citation

Plummer, F. B., & Fuqua, F. B. (1937). Geologic map of Young County, Texas. Bureau of Economic Geology.

Chicago Style (17th ed.) Citation

Plummer, F. B., and F. B. Fuqua. Geologic Map of Young County, Texas. [Austin, Tex.]: Bureau of Economic Geology, 1937.

MLA (9th ed.) Citation

Plummer, F. B., and F. B. Fuqua. Geologic Map of Young County, Texas. Bureau of Economic Geology, 1937.