00414nam a22001577i 4500001001000000005001700010008004100027082001900068100002400087245004200111250001000153260003900163300001700202650001900219020001800238SXC01833320260819093637.0260101s1986    ii            000 0 eng d  a539 BAN-M2222  aBansal, M C, et al.10aModern physics /cBansal, M C, et al.  a2 ed.  abPragati Prakashan, Meerut,c1986  ap. ;c22 cm. 0aModern physics  a9780030619342