Bogardus, E. S., & Lewis, R. H. (1938). Social life and personality. Silver Burdett company.
Lua i Stíl Chicago (17ú heag.)Bogardus, Emory Stephen, agus Robert Hamilton Lewis. Social Life and Personality. New York: Silver Burdett company, 1938.
Lua MLA (9ú heag.)Bogardus, Emory Stephen, agus Robert Hamilton Lewis. Social Life and Personality. Silver Burdett company, 1938.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.