Sources

(1) The Complete Guide to Dressage by Jennie Loriston-Clarke.

(2) The United States Dressage Federation's Web site at www.usdf.org.

(3) The International Olympic Committee's Web site at www.olympic.org.

(4) "Small and Standard Dressage Arena Letters and Dimensions" at www.about.com.

(5) "What are the Olympic Equestrian Sports?: at www.about.com.

(6) Fédération Equestre Internationale's Web site at www.fei.org.

(7) An Expert's Guide to Basic Dressage by Jean Froissard.