000			00371nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aBARTON(M A)
245			_aAn introduction to coordinate geometry
260			_aLondon
260			_bUniversity of london press
260			_c1958
300			_a303 p.
942			_cBooks
999			_c11134 _d11134