000			00379nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a658
100			_aYourden E.
245		0	_aManaging the system life cycle
260			_aNew York
260			_bYourdon Press
260			_c1982
300			_a144p.
365			_b70
650			_aMBA
942			_cDBK
999			_c17286 _d17286