APA (7th ed.) Citation

Eve, A. S., & Keys, D. A. (1927). Geophysical methods of prospecting: Brief and elementary account of principles involved. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Eve, A. S., and D. A. Keys. Geophysical Methods of Prospecting: Brief and Elementary Account of Principles Involved. [Washington?]: U.S. Government Printing Office, 1927.

MLA (9th ed.) Citation

Eve, A. S., and D. A. Keys. Geophysical Methods of Prospecting: Brief and Elementary Account of Principles Involved. U.S. Government Printing Office, 1927.