000 00269nam a2200121Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a531
082 _bLAL/P
100 _abansi
_blaL
245 0 _aparticle dynamics
260 _anewdelhi
260 _bsultan chand &sons
999 _c9425
_d9425