Wils, F. (1991). The informal sector in Greater Sao Paulo: A discussion of concepts and criteria, and a description of its characteristics. Institute of Social Studies.
Chicago Style (17th ed.) CitationWils, F. The Informal Sector in Greater Sao Paulo: A Discussion of Concepts and Criteria, and a Description of Its Characteristics. The Hague, The Netherlands: Institute of Social Studies, 1991.
MLA (9th ed.) CitationWils, F. The Informal Sector in Greater Sao Paulo: A Discussion of Concepts and Criteria, and a Description of Its Characteristics. Institute of Social Studies, 1991.
Warning: These citations may not always be 100% accurate.