TY - BOOK ED - AMERICAN SOCIETY FOR TESTING AND MATERIALS TI - 1973 ANNUAL BOOK OF ASTM STANDARDS: MAGNETIC PROPERTIES; METALLIC MATERIALS FOR THERMOSTATS AND FOR ELECTRICAL RESISTANCE, HEATING, AND CONTACTS; ELECTRONICS (PART 8) U1 - 620.0044 PY - 1973/// CY - Estados Unidos PB - AMERICAN SOCIETY FOR TESTING AND MATERIALS KW - NORMAS ASTM ER -