000			00366nam a2200157Ia 4500
008			230627s9999 xx 000 0 und d
050			_aPAM QC73.C92
100			_aCroll, J. G. A.
245		0	_aForce systems and equilibrium
260			_bChatto and Windus
260			_c1974
300			_a96p.
300			_bill.
300			_c21cm.
650			_aForce systems
999			_c124074 _d124074