Linton, R. (1955). The tree of culture. Knopf.
Lua i Stíl Chicago (17ú heag.)Linton, Ralph. The Tree of Culture. New York: Knopf, 1955.
Lua MLA (9ú heag.)Linton, Ralph. The Tree of Culture. Knopf, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.