00251nam a2200109Ia 4500008004100000100001900041245002200060260002400082300001000106942000800116999001700124190216s9999||||xx |||||||||||||| ||und||  aLakhan Pal R C 0aObjective Physics  bS Dihesh & Coc1998  a1011p  cREF  c36283d36283