Não informado. (1964). Swimming technique. American Swimming Coaches Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Swimming Technique. Los Angeles, Calif: American Swimming Coaches Association, 1964.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Swimming Technique. American Swimming Coaches Association, 1964.
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