Cook, L. A. (1954). Intergroup education. McGraw-Hill.
Cita Chicago (17th ed.)Cook, Lloyd Allen. Intergroup Education. New York: McGraw-Hill, 1954.
Cita MLA (9th ed.)Cook, Lloyd Allen. Intergroup Education. McGraw-Hill, 1954.
Atenció: Aquestes cites poden no estar 100% correctes.