Ballard, W. R. (1946). There is no mystery about patents. J. M. Barrett Corporation.
Chicago Style (17th ed.) CitationBallard, William R. There Is No Mystery About Patents. New York: J. M. Barrett Corporation, 1946.
MLA (9th ed.) CitationBallard, William R. There Is No Mystery About Patents. J. M. Barrett Corporation, 1946.
Warning: These citations may not always be 100% accurate.