APA (7th ed.) Citation

Walker, A. H., & Lotsch, J. L. (1929). A treatise on the law of patents for inventions (6th ed.). Baker Voorhis & Co..

Chicago Style (17th ed.) Citation

Walker, Albert Henry, and John Louis Lotsch. A Treatise on the Law of Patents for Inventions. 6th ed. New York: Baker Voorhis & Co., 1929.

MLA (9th ed.) Citation

Walker, Albert Henry, and John Louis Lotsch. A Treatise on the Law of Patents for Inventions. 6th ed. Baker Voorhis & Co., 1929.