APA (7th ed.) Citation

Walker, A. H., Hilliard, J. H., & Eblé, E. (1923). Text-book of the law of patents for inventions (5th ed.). Baker, Voorhis.

Chicago Style (17th ed.) Citation

Walker, Albert Henry, John H. Hilliard, and Eugene Eblé. Text-book of the Law of Patents for Inventions. 5th ed. New York: Baker, Voorhis, 1923.

MLA (9th ed.) Citation

Walker, Albert Henry, et al. Text-book of the Law of Patents for Inventions. 5th ed. Baker, Voorhis, 1923.