Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.