United States. Federal Trade Commission. Office of Consumer and Business Education. (2002). Informe confidencial sobre las cadenas de cartas. Federal Trade Commission, Bureau of Consumer Protection, Office of Consumer and Business Education.
Chicago Style (17th ed.) CitationUnited States. Federal Trade Commission. Office of Consumer and Business Education. Informe Confidencial Sobre Las Cadenas De Cartas. [Washington, D.C.]: Federal Trade Commission, Bureau of Consumer Protection, Office of Consumer and Business Education, 2002.
MLA (9th ed.) CitationUnited States. Federal Trade Commission. Office of Consumer and Business Education. Informe Confidencial Sobre Las Cadenas De Cartas. Federal Trade Commission, Bureau of Consumer Protection, Office of Consumer and Business Education, 2002.