Gulick, L. H. (1902). Ten minutes' exercise for busy men: A complete course in physical education : five separate courses, free work, chest weights, dumb bells, wands, Indian clubs. American Sports Pub. Co..
Chicago-referens (17:e uppl.)Gulick, Luther Halsey. Ten Minutes' Exercise for Busy Men: A Complete Course in Physical Education : Five Separate Courses, Free Work, Chest Weights, Dumb Bells, Wands, Indian Clubs. New York: American Sports Pub. Co., 1902.
MLA-referens (8:e uppl.)Gulick, Luther Halsey. Ten Minutes' Exercise for Busy Men: A Complete Course in Physical Education : Five Separate Courses, Free Work, Chest Weights, Dumb Bells, Wands, Indian Clubs. American Sports Pub. Co., 1902.
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