APA (7e ed.) Bronvermelding

Demate, C. J. M., & Yap, V. (2010). Determinants of the sustainability of duty free shops in clark freeport zone. University of the Philippines Diliman Extension Program in Pampanga.

Chicago (17e ed.) Bronvermelding

Demate, Cielo Jane M., en Virginia Yap. Determinants of the Sustainability of Duty Free Shops in Clark Freeport Zone. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2010.

MLA (9e ed.) Bronvermelding

Demate, Cielo Jane M., en Virginia Yap. Determinants of the Sustainability of Duty Free Shops in Clark Freeport Zone. University of the Philippines Diliman Extension Program in Pampanga, 2010.