00349nam a2200157Ia 4500008004100000020000900041035001000050082001300060100002200073245002200095250000800117260004600125300000800171500000600179650000600185210723s9999||||xx |||||||||||||| ||und||  aNULL  a24590  a530BPER  aPerkins, Henry A. 0aCourse Of Physics  a3rd  aLondonbBlackie & Son Publishers Pvt. Ltd  a824  a0  a-