United States. Secret Service. (1991). Counterfeiting and forgery (Rev. Mar. 1991.). The Service.
Chicago Style (17th ed.) CitationUnited States. Secret Service. Counterfeiting and Forgery. Rev. Mar. 1991. [Washington, D.C.?]: The Service, 1991.
MLA (9th ed.) CitationUnited States. Secret Service. Counterfeiting and Forgery. Rev. Mar. 1991. The Service, 1991.
Warning: These citations may not always be 100% accurate.