000			00335nam a2200133Ia 4500
008			180710s9999 xx 000 0 und d
020			_a73225
082			_a651.26 _bSYS
100			_aEmery, F.E., ed.
245			_aSYSTEMS thinking: selected readings
260			_aHarmondsworth _bPenguin Books _c1969
300			_a398 p.
942			_cS
999			_c80602 _d80602