1.

図書
図書
1. Swimming & lifesaving : the manual. 3rd ed
the Royal Life Saving Society Australia
出版情報: Sydney : Mosby lifeline, c1995
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2.

図書
図書
2. On the guard : the YMCA lifeguard manual (: pbk.)
[editors, D.I. Forsten and Marjorie M. Murphy]
出版情報: Champaign, IL : YMCA of the USA : Purchased from the YMCA Program Store, c1986
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