Ries Al. (1999). Horse Sense: Key to Success Is Finding a Horse to Ride. McGraw Hill.
Cita Chicago (17th ed.)Ries Al. Horse Sense: Key to Success Is Finding a Horse to Ride. New York: McGraw Hill, 1999.
Cita MLA (9th ed.)Ries Al. Horse Sense: Key to Success Is Finding a Horse to Ride. McGraw Hill, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.