000			00331nam a2200133Ia 4500
008			180710s9999 xx 000 0 und d
020			_a31692
082			_a1 _bSYS
100			_aEmery, F.E., ed.
245			_aSYSTEMS thinkingL: selected readings
260			_aHarmondsworth _bPenguin books _c1972
300			_a398 p.
942			_cS
999			_c80603 _d80603