APA (7th ed.) Citation

Swartz, J. H. (1932). Oil prospecting in Kentucky by resistivity methods. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Swartz, Joel H. Oil Prospecting in Kentucky by Resistivity Methods. [Washington?]: U.S. Government Printing Office, 1932.

MLA (9th ed.) Citation

Swartz, Joel H. Oil Prospecting in Kentucky by Resistivity Methods. U.S. Government Printing Office, 1932.