Electronic Engineering Master Index, July 1945 to December 1946.
Electronics research publishing co, NY 1947 first edition; 202 pages,Cross Index of Subjects at rear.
Electronics research publishing co, NY 1947 first edition; 202 pages,Cross Index of Subjects at rear.
Electronic Research Publishing Co., NY 1947 etc; approx. 830 pages in 3 volumes, double-column text, alphabetical listings.