Horowitz, I. L., & Katz, J. E. (1975). Social science and public policy in the United States. Praeger.
Cita Chicago (17th ed.)Horowitz, Irving Louis, i James Everett Katz. Social Science and Public Policy in the United States. New York: Praeger, 1975.
Cita MLA (9th ed.)Horowitz, Irving Louis, i James Everett Katz. Social Science and Public Policy in the United States. Praeger, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.