Kardiner, A., & Preble, E. (1961). They studied man (First edition.). World Publishing.
Cita Chicago (17th ed.)Kardiner, Abram, i Edward Preble. They Studied Man. First edition. Cleveland, Ohio: World Publishing, 1961.
Cita MLA (9th ed.)Kardiner, Abram, i Edward Preble. They Studied Man. First edition. World Publishing, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.