APA (7th ed.) Zitazioa

Foster, F. H., & Shook, R. L. (1993). Patents, Copyrights & trademarks (2nd ed.). Wiley.

Chicago Style (17th ed.) Zitazioa

Foster, Frank H., eta Robert L. Shook. Patents, Copyrights & Trademarks. 2nd ed. New York: Wiley, 1993.

MLA (9th ed.) Zitazioa

Foster, Frank H., eta Robert L. Shook. Patents, Copyrights & Trademarks. 2nd ed. Wiley, 1993.