APA (7th ed.) Citation

Philippine Ports Authority. Commercial Services Department. (1999). Profile of Philippine ports (3rd ed.). The Department.

Chicago Style (17th ed.) Citation

Philippine Ports Authority. Commercial Services Department. Profile of Philippine Ports. 3rd ed. Manila: The Department, 1999.

MLA (9th ed.) Citation

Philippine Ports Authority. Commercial Services Department. Profile of Philippine Ports. 3rd ed. The Department, 1999.