Krutch, J. W. (1964). If you don't mind my saying so: Essays on man and nature. Sloane Associates.
Cita Chicago (17th ed.)Krutch, Joseph Wood. If You Don't Mind My Saying so: Essays on Man and Nature. New York: Sloane Associates, 1964.
Cita MLA (9th ed.)Krutch, Joseph Wood. If You Don't Mind My Saying so: Essays on Man and Nature. Sloane Associates, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.