Philippines. Department of Trade. (1972). Philippine foreign trade, 1972- resume: A statistical handbook. s.n.
Lua i Stíl Chicago (17ú heag.)Philippines. Department of Trade. Philippine Foreign Trade, 1972- Resume: A Statistical Handbook. [Quezon City: s.n, 1972.
Lua MLA (9ú heag.)Philippines. Department of Trade. Philippine Foreign Trade, 1972- Resume: A Statistical Handbook. s.n, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.