000			00339nam a2200109 4500
008			0 1972 0a 000 0MEX
082			_a421.52 B293t
100			_aButler L., Diego
245			_aTechnical English. For The Engineering Student levels 1&2 / Diego Butler L.
260			_aMéxico : McGraw-Hill
300			_a122p. / 22.5 cm.
999			_c21073 _d21073