00486nam a2200133 i 450000100060000000300090000600700030001500800410001810000200005924501740007926000440025330000340029785200210033134677ES-MaACLt|030207s1920 xxk ||||1| eng d1 aBlythe, Edward.10aA text book on machine drawing for electrical engineers / cforming and introductory treatige on the construction of electrical machinery and apparatus by Edward Blythe. aCambridge : bUniversity Press, c1920. aVII, 81 p., lám. ; c26 cm. aES-MaACLjB-4318