University of the Philippines (Diliman). School of Economics & Industrial Promotion Policies Project. (1978). Why border prices? UPSE.
Chicago Style (17. basım) AtıfUniversity of the Philippines (Diliman). School of Economics ve Industrial Promotion Policies Project. Why Border Prices? [Quezon City]: UPSE, 1978.
MLA (9th ed.) AtıfUniversity of the Philippines (Diliman). School of Economics ve Industrial Promotion Policies Project. Why Border Prices? UPSE, 1978.
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