Philippines Department of Trade and Industry. (1989). Philippine foreign trade profile, 1987-1988. Bureau of Export Trade Promotion, Department of Trade & Industry.
Cita Chicago Style (17a ed.)Philippines Department of Trade and Industry. Philippine Foreign Trade Profile, 1987-1988. Makati, Metro Manila: Bureau of Export Trade Promotion, Department of Trade & Industry, 1989.
Cita MLA (9a ed.)Philippines Department of Trade and Industry. Philippine Foreign Trade Profile, 1987-1988. Bureau of Export Trade Promotion, Department of Trade & Industry, 1989.
Precaución: Estas citas no son 100% exactas.