Halpern, S. W. (2011). Fundamentals of United States intellectual property law: Copyright, patent, trademark (3rd ed.). Kluwer Law International.
Chicago Style (17th ed.) CitationHalpern, Sheldon W. Fundamentals of United States Intellectual Property Law: Copyright, Patent, Trademark. 3rd ed. Alphen aan den Rijn: Kluwer Law International, 2011.
MLA (9th ed.) CitationHalpern, Sheldon W. Fundamentals of United States Intellectual Property Law: Copyright, Patent, Trademark. 3rd ed. Kluwer Law International, 2011.
Warning: These citations may not always be 100% accurate.