000 00264nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a615.853 DUF
100 _aDuffield, M.H.
245 _aExercise in water.
260 _bTindall and Cassell.
_aLondon.
_c1919
999 _c144893
_d144893