Studener, H., & Wolf, W. (1990). Soccer training II: Advanced drills for techniques, game strategies, and physical prepration. Sport Books.
Lua i Stíl Chicago (17ú heag.)Studener, Hans, agus Werner Wolf. Soccer Training II: Advanced Drills for Techniques, Game Strategies, and Physical Prepration. Toronto, Ont: Sport Books, 1990.
Lua MLA (9ú heag.)Studener, Hans, agus Werner Wolf. Soccer Training II: Advanced Drills for Techniques, Game Strategies, and Physical Prepration. Sport Books, 1990.
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