Horton, P. B., & Leslie , G. R. (1965). The sociology of social problems (3rd ed.). Appleton.
Cita Chicago (17th ed.)Horton, Paul B., i Gerald R. Leslie. The Sociology of Social Problems. 3rd ed. New York: Appleton, 1965.
Cita MLA (9th ed.)Horton, Paul B., i Gerald R. Leslie. The Sociology of Social Problems. 3rd ed. Appleton, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.