000 00331nam a2200121Ia 4500
008 230718s9999||||xx |||||||||||||| ||und||
082 _a005.12
100 _aDROMEY GEOFF
245 0 _aPROGRAM DERIVATION THE DEVELOPMENT OF PROGRAMMS
_bFROM SPECIFICATION ( A COPY)
250 _a1
260 _bADP
_c1989
_aNEW YORK
300 _a619
999 _c58439
_d58439