Philippines. Bureau of Posts. Planning Division. (1976). Systems study: Postal operations. The Bureau.
Chicago Style (17th ed.) CitationPhilippines. Bureau of Posts. Planning Division. Systems Study: Postal Operations. [Manila]: The Bureau, 1976.
MLA (9th ed.) CitationPhilippines. Bureau of Posts. Planning Division. Systems Study: Postal Operations. The Bureau, 1976.
Warning: These citations may not always be 100% accurate.