APA (7e ed.) Bronvermelding

Worcester, D. A. (1976). Unemployment as a consequence of unrecognized external economics in the labor markets [microform]. Photoduplication Service, University of the Philippines.

Chicago (17e ed.) Bronvermelding

Worcester, Dean Amory. Unemployment as a Consequence of Unrecognized External Economics in the Labor Markets [microform]. Quezon City: Photoduplication Service, University of the Philippines, 1976.

MLA (9e ed.) Bronvermelding

Worcester, Dean Amory. Unemployment as a Consequence of Unrecognized External Economics in the Labor Markets [microform]. Photoduplication Service, University of the Philippines, 1976.