000 00281cam a2200121 4500
020 _a058232212X (pbk.)
100 1 _aCHAUNDY David
245 0 _aWaves
260 _aLondon:
_bLongman Group Ltd,
_c1972
300 _a64p.
440 _aLongman physics topics
945 _i0010970
_rY
_sY
999 _c46227
_d46227