Não informado. (1901). Physical training. Young Men's Christian Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Physical Training. New York: Young Men's Christian Association, 1901.
MLA-Zitierstil (8. Ausg.)Não informado. Physical Training. Young Men's Christian Association, 1901.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.