Maratta, R. (1981). Drills and performance objectives for coaching track and field: Featuring the challenge method. Parker.
Citace podle Chicago (17th ed.)Maratta, Roy. Drills and Performance Objectives for Coaching Track and Field: Featuring the Challenge Method. West Nyack, N. Y: Parker, 1981.
Citace podle MLA (9th ed.)Maratta, Roy. Drills and Performance Objectives for Coaching Track and Field: Featuring the Challenge Method. Parker, 1981.
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