1
von Dintiman, George B. (Autor)
Washington, D.C.: American Association for Health, Physical Education and Recreation (Verlag), 1974, 85 S., Lit.
Verfügbarkeit
2
von Wolfert, Kenneth C. (Autor),
Erschienen in Selected problems in sports safety, Washington, D.C.: American Association for Health, Physical Education and Recreation (Verlag), 1975, S. 46-65
Verfügbarkeit
Erschienen in Selected problems in sports safety, Washington, D.C.: American Association for Health, Physical Education and Recreation (Verlag), 1975, S. 46-65