APA aipamena

Worcester, D. A. Pecuiarity and technological externality, factor rents and social costs [microfilm]. Photoduplication Service, University of the Philippines Library,1976.

Chicago Style aipamena

Worcester, Dean Amory. Pecuiarity and Technological Externality, Factor Rents and Social Costs [microfilm]. Quezon City: Photoduplication Service, University of the Philippines Library,1976.

MLA aipamena

Worcester, Dean Amory. Pecuiarity and Technological Externality, Factor Rents and Social Costs [microfilm]. Photoduplication Service, University of the Philippines Library,1976.