Philippine Ports Authority & Castro, T. C. (1989). Profile of Philippine ports, 1989-. Philippine Ports Authority.
Chicago Style (17th ed.) CitationPhilippine Ports Authority and Teresita C. Castro. Profile of Philippine Ports, 1989-. [Manila]: Philippine Ports Authority, 1989.
MLA (9th ed.) CitationPhilippine Ports Authority and Teresita C. Castro. Profile of Philippine Ports, 1989-. Philippine Ports Authority, 1989.
Warning: These citations may not always be 100% accurate.