VERNER, B. (1985). Racquetball: Basic skills and drills. Mayfield Publishing Comp.
Lua i Stíl Chicago (17ú heag.)VERNER, Bill. Racquetball: Basic Skills and Drills. California: Mayfield Publishing Comp, 1985.
Lua MLA (9ú heag.)VERNER, Bill. Racquetball: Basic Skills and Drills. Mayfield Publishing Comp, 1985.
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