000			00379nam a2200121 4500
008			0 0a 000 0MEX
020			_a968-33-0101-0
082			_a428 M318g T.VIII
100			_aMaggs, Margaret
245			_aGrolier Programmed Learning Systems. Language: English Level : Basic 8./ Margaret Maggs
260			_aMéxico : Grolier
300			_a141p. / 28 cm.
999			_c21180 _d21180