Keywords: Copyright Popular Electronics 1974.jpg en Copyright catalogs at the Library of Congress Located in room LM-404 of the James Madison Memorial Building Washington DC The publication data for each magazine issue was hand-entered on the 3 by 5 inch index card Own Michael Holley Swtpc6800 2009-04-30 File Copyright Card Catalog Files jpg File Copyright Card Catalog Drawer jpg File Copyright Popular Electronics 1975 jpg Copyright Office Index cards Card catalogs Photographs by User Swtpc6800 Popular Electronics |