Research Sources of Additional Information: Athletes, Coaches, Umpires, and Related Workers

For general information on coaching, contact:

• National High School Athletic Coaches Association, P.O. Box 4342, Hamden, CT 06514.
  Internet: http://www.hscoaches.org

For information about sports officiating for team and individual sports, contact:

• National Association of Sports Officials, 2017 Lathrop Ave., Racine, WI 53405.
  Internet: http://www.naso.org