000 00291nam a2200121Ia 4500
008 210901s1972 xx 000 0 eng d
082 _a530 BLA
245 0 _aWaves and oscillations
260 _aEngland
_bPenguin books ltd
_c1971
300 _a143p.
650 _aPhysics
942 _2ddc
_cBK
999 _c11184
_d11184