000			00264nam a22001097a 4500
082			_a510 _bDEN
100			_aRichard A, Denholm
245			_aMathematics structure and skills _cDenholm, Richard A
300			_a471 p. : _bill. ; _c20 cm. +
650			_aMCE
942			_cBK
999			_c3628 _d3628