Casanova, S. (2002). Cellular service providers nix proposed phone card tax scheme. Manila Times.
Chicago Style (17th ed.) CitationCasanova, Sheryll. "Cellular Service Providers Nix Proposed Phone Card Tax Scheme." Manila Times 2002.
MLA (9th ed.) CitationCasanova, Sheryll. "Cellular Service Providers Nix Proposed Phone Card Tax Scheme." Manila Times, 2002.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.