Não informado. (1978). Physical Fitness / Sports Medicine. President's Council on Physical Fitness & Sports.
Lua i Stíl Chicago (17ú heag.)Não informado. Physical Fitness / Sports Medicine. Washington: President's Council on Physical Fitness & Sports, 1978.
Lua MLA (8ú heag.)Não informado. Physical Fitness / Sports Medicine. President's Council on Physical Fitness & Sports, 1978.
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