Child, I. L. (1973). Humanistic psychology and the research tradition: Their several virtues. Wiley.
Lua i Stíl Chicago (17ú heag.)Child, Irvin Long. Humanistic Psychology and the Research Tradition: Their Several Virtues. New York: Wiley, 1973.
Lua MLA (9ú heag.)Child, Irvin Long. Humanistic Psychology and the Research Tradition: Their Several Virtues. Wiley, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.