ASTM STANDARDS: BOOK OF 1961 PART 2: NONFERROUS METALS SPECIFICATIONS, ELECTRON TUBE MATERIALS, SEMICONDUCTORS - S.E. - Estados Unidos AMERICAN SOCIETY FOR TESTING AND MATERIALS 1961 PHILADELPHIA - 1690 LCCN: 108714 Subjects--Topical Terms: METALES NO FERROSOSNORMAS ASTMSEMICONDUCTORES Dewey Class. No.: 620.0044