000 00329nam a2200145Ia 4500
001 20572
008 240126s9999||||xx |||||||||||||| ||und||
082 _a530 PHY
245 0 _aPhysics: Mechanics waves and oscillations optics
260 _aHyderabad
260 _bDr. BRAOU
260 _c1993
300 _a359p.
942 _cBK
999 _c20572
_d20572