00278nam a2200109Ia 450000500170000000800410001708200120005810000220007024500260009226000420011830000080016020260225050929.0260224s9999||||xx |||||||||||||| ||und||  a517 LEA  aTeddy C.J.Leavitt 0aLimits and continuity  aNew York: McGraw-Hill Book Co. c1967  a177