000			00345nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a132575027
082			_a512
082			_b7 LON
100			_a"Long, Calvin T"
245		0	_aElementary Introduction
260			_aEnglewood
260			_bP.H.I
260			_c1987
300			_a"xii, 292"
999			_c27656 _d27656