Citazione Stile APA (7a Edizione)

Williamson, J. G. Education as an asset in the Philippine economy [microfilm]. Photoduplication Service, University of the Philippines Library,1976.

Citazione stile Chigago Style (17a edizione)

Williamson, Jeffrey G. Education as an Asset in the Philippine Economy [microfilm]. Quezon City: Photoduplication Service, University of the Philippines Library,1976.

Citatione MLA (9a ed.)

Williamson, Jeffrey G. Education as an Asset in the Philippine Economy [microfilm]. Photoduplication Service, University of the Philippines Library,1976.