000 00347nam a2200133Ia 4500
001 20076
008 170722s9999 xx 000 0 und d
245 _aPhysics :
_bteachers guide unit 4, waves and oscillations, eng /
260 _c1971.
490 _aNuffield advanced science
653 _aPhysics
653 _aWave Mechanics
942 _cGEN
999 _c161072
_d161072