Charters, W. W., Smiley, D. F., & Strang, R. M. (1941). Habits, healthful and safe. New York: Macmillan.
Chicago Style CitationCharters, Werrett Wallace, Dean F. Smiley, i Ruth M. Strang. Habits, Healthful and Safe. New York: Macmillan, 1941.
Cita MLACharters, Werrett Wallace, Dean F. Smiley, i Ruth M. Strang. Habits, Healthful and Safe. New York: Macmillan, 1941.
Atenció: Aquestes cites poden no estar 100% correctes.