APA (7. basım) Alıntı

Espino, J. M. (1977). The American tariff policy in the Philippines [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17. basım) Atıf

Espino, Jose Ma. The American Tariff Policy in the Philippines [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

MLA (9th ed.) Atıf

Espino, Jose Ma. The American Tariff Policy in the Philippines [microform]. Photoduplication Service, University of the Philippines Library, 1977.