Ries Al. (1999). Horse Sense: Key to Success Is Finding a Horse to Ride. McGraw Hill.
Cita Chicago Style (17a ed.)Ries Al. Horse Sense: Key to Success Is Finding a Horse to Ride. New York: McGraw Hill, 1999.
Cita MLA (9a ed.)Ries Al. Horse Sense: Key to Success Is Finding a Horse to Ride. McGraw Hill, 1999.
Precaución: Estas citas no son 100% exactas.