APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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