Gould, R. A. (1973). Man's many ways. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Gould, Richard A. Man's Many Ways. New York: Harper & Row, 1973.
Lua MLA (8ú heag.)Gould, Richard A. Man's Many Ways. Harper & Row, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.