APA ציטוט

Worcester, D. A. A unified theory of external effects of social cost [microfilm]. Photoduplication Service, University of the Philippines Library,1976.

Chicago Style (17th ed.) Citation

Worcester, Dean A. A Unified Theory of External Effects of Social Cost [microfilm]. Quezon City: Photoduplication Service, University of the Philippines Library,1976.

ציטוט MLA

Worcester, Dean A. A Unified Theory of External Effects of Social Cost [microfilm]. Photoduplication Service, University of the Philippines Library,1976.