000 00310nam a2200121Ia 4500
100 _aWithington, Frederic G.
020 _a0-201-14459-X
942 _cBK
245 _aThe Environment for systems programs
260 _aAddison-Wesley publishing company, London
_c1978
082 _a001.6 Wit
300 _axv;324
999 _c19935
_d19935