000 00343nam a2200145Ia 4500
020 _a0077072332
082 _b1355
_a001.642
100 _a"Raymond W.Norman"
245 0 _aEssential COBOL
260 _b,McGraw-Hill Company
_aUK
_c1991
300 _a1100565
944 _cBK
999 _c629925
_d629925