Barrett, Paul M.1995. "High Court Sees Color as a Basis for Trademarks."The Wall Street Journal (March 29): A4.
2.
Benko, Robert P.1987. Protecting Intellectual Property Rights: Issues and Controversies. Washington, D.C.: American Enterprise Institute for Public Policy Research.
3.
Dorr, Robert C.
and Christopher H. Munch. 1990. Protecting Trade Secrets, Patents, Copyrights, and Trademarks. New York: John Wiley.
4.
Dorr, Robert C.
and Christopher H. Munch1991. Protecting Trade Secrets, Patents, Copyrights, and Trademarks (Supplement). New York: John Wiley.