APA-referens (7:e uppl.)

De Grazia, S. (1962). Of time, work, and leisure. Twentieth Century Fund.

Chicago-referens (17:e uppl.)

De Grazia, Sebastian. Of Time, Work, and Leisure. New York: Twentieth Century Fund, 1962.

MLA-referens (9:e uppl.)

De Grazia, Sebastian. Of Time, Work, and Leisure. Twentieth Century Fund, 1962.