000			00349nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a45170053
082			_a515
082			_b1 HIR
100			_a"Hirst,K.E."
245		0	_aCalculus of One Valuable
260			_aLondon
260			_bGeorge Allen & Unwin Ltd
260			_c1972
300			_a85
999			_c30377 _d30377