APA (7th ed.) Citation

Folk, S. H., & Swann, D. H. (1946). King oil field, Jefferson County, Illinois. [publisher not identified].

Chicago Style (17th ed.) Citation

Folk, Stewart Huntley, and David Henry Swann. King Oil Field, Jefferson County, Illinois. Urbana, Illinois: [publisher not identified], 1946.

MLA (9th ed.) Citation

Folk, Stewart Huntley, and David Henry Swann. King Oil Field, Jefferson County, Illinois. [publisher not identified], 1946.