00243nam a22000977a 4500008004100000040000800041082001300049100001500062245002500077260004300102260407b        |||||||| |||| 00| 0 eng d  aRCL  a310 G98S  aGupta,R.L.  aSankhiki Ke Siddhant  aNew DelhibSultan Chand and Sonsc1984