Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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