00301nam a2200121Ia 4500008004100000082001700041100001800058245003200076250000600108260004000114300000800154650001700162120425s9999    xx            000 0 und d  a 510  DEV-N2  a Devassy, M O  a New subsidiary mathematics  a2  b Deline Publications, Calicutc1968  a232  a Mathematics