Beltran, R. (2001). RP also takes strict airport security steps. Manila Times.
Chicago-referens (17:e uppl.)Beltran, Ricky. "RP Also Takes Strict Airport Security Steps." Manila Times 2001.
MLA-referens (9:e uppl.)Beltran, Ricky. "RP Also Takes Strict Airport Security Steps." Manila Times, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.