00339nam a22001217a 4500008004100000040005500041080001700096245004100113300001000154650002000164653001700184653001600201230320b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aD 681.3 bL6  aIBM 1401: bStudent reference manual  a174p.  aData processing  aInput output  aOperartions