Willis, F. R. (1987). Western civilization: A belief introduction. Macmillan.
Chicago-čujuhus (17. p.)Willis, F. Roy. Western Civilization: A Belief Introduction. New York: Macmillan, 1987.
MLA-čujuhus (9. p.)Willis, F. Roy. Western Civilization: A Belief Introduction. Macmillan, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.