Colcord, J. C. (1939). Your community: Its provision for health, education, safety, and welfare. Russell Sage Foundation.
Cita Chicago (17th ed.)Colcord, Joanna Carver. Your Community: Its Provision for Health, Education, Safety, and Welfare. New York: Russell Sage Foundation, 1939.
Cita MLA (9th ed.)Colcord, Joanna Carver. Your Community: Its Provision for Health, Education, Safety, and Welfare. Russell Sage Foundation, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.