United States. Federal Trade Commission. Division of Consumer and Business Education. (2010). When minutes matter: Choosing a pre-paid phone card. Federal Trade Commission, Bureau of Consumer Protection, Division of Consumer & Business Education.
Chicago Style (17th ed.) CitationUnited States. Federal Trade Commission. Division of Consumer and Business Education. When Minutes Matter: Choosing a Pre-paid Phone Card. [Washington, D.C.]: Federal Trade Commission, Bureau of Consumer Protection, Division of Consumer & Business Education, 2010.
MLA (8th ed.) CitationUnited States. Federal Trade Commission. Division of Consumer and Business Education. When Minutes Matter: Choosing a Pre-paid Phone Card. Federal Trade Commission, Bureau of Consumer Protection, Division of Consumer & Business Education, 2010.