Angel, T. V. (1991). Tourism industry optimistic despite economic, political problems / Teddy V. Angel. Manila Times.
Chicago-referens (17:e uppl.)Angel, Teddy V. "Tourism Industry Optimistic Despite Economic, Political Problems / Teddy V. Angel." Manila Times 1991.
MLA-referens (9:e uppl.)Angel, Teddy V. "Tourism Industry Optimistic Despite Economic, Political Problems / Teddy V. Angel." Manila Times, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.