00349nam a2200121Ia 4500008004100000082001500041100001700056245002000073260003900093300001000132630001800142650006700160211109s9999||||xx |||||||||||||| ||und||  a510bKOC-P  aKochumman, C 0aPragath Kalanam  bNATIONAL BOOKSTALLaKottayamc1974  a468p.  xgeneral stack  asciencevnatural science and mathematicsxmathematicsGeneralia