APA

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

Chicago

De Grazia Sebastián, . 1962. Of time work and leisure. New York: The Twentieth Century Fund.

Harvard

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

MLA

De Grazia Sebastián, . Of time work and leisure. New York: The Twentieth Century Fund. 1962.