000 002900000a22001090004500
245 _aCOBOL workbook : a self-study introduction to the COBOL programming language
100 _aParkin, Andrew
260 _aLondon
_bE.Arnold
_c1981
080 _a681.3.06
_bP3
041 _aEN
942 _cBK
999 _c115714
_d115714