De Guzman, R. C. (1998). Airline operators make proposals. Manila Bulletin.
Chicago Style (17th ed.) CitationDe Guzman, Ronniel C. "Airline Operators Make Proposals." Manila Bulletin 1998.
MLA (9th ed.) CitationDe Guzman, Ronniel C. "Airline Operators Make Proposals." Manila Bulletin, 1998.
Warning: These citations may not always be 100% accurate.