000 00309nam a2200121Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a531.33
100 _aTHE OPEN UNIVERSITY
245 0 _aPhysics Waves and vibrations Block 2a
260 _aNawala
_bThe Open University
_c1984
942 _cPR
999 _c42396
_d42396