00259nam a2200121Ia 4500008004100000041000800041082001900049100001500068245002700083250001000110260000900120300000800129211209s1976    xx            000 0 und d  aeng  a515.33 N76 KHA  aKHANNA M L  aDIFFERENTIAL CALCULUS   a6 ed.  c1976  a290