APA (7th ed.) Citation

Hall, E. L., & Preston, J. L. (1925). Study of seasonal variation of radio-frequency phase difference of laminated phenolic insulating materials. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Hall, E. L., and J. Lonnie Preston. Study of Seasonal Variation of Radio-frequency Phase Difference of Laminated Phenolic Insulating Materials. [Washington?]: U.S. Government Printing Office, 1925.

MLA (9th ed.) Citation

Hall, E. L., and J. Lonnie Preston. Study of Seasonal Variation of Radio-frequency Phase Difference of Laminated Phenolic Insulating Materials. U.S. Government Printing Office, 1925.