Krutch, J. W. (1964). If you don't mind my saying so: Essays on man and nature. Sloane Associates.
Chicago-referens (17:e uppl.)Krutch, Joseph Wood. If You Don't Mind My Saying so: Essays on Man and Nature. New York: Sloane Associates, 1964.
MLA-referens (9:e uppl.)Krutch, Joseph Wood. If You Don't Mind My Saying so: Essays on Man and Nature. Sloane Associates, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.