Popular Electronics Magazine Vol. 7 Issue 2 August 1957

Popular Electronics Magazine Vol. 6 Issue 3 March 1957

Popular Electronics Magazine Vol 15 Issue 4 October 1961

McGraw-Hill Vintage Control Engineering Magazine July 1957 Vol 4 Issue No 7

McGraw-Hill Vintage Control Engineering Magazine October 1957 Vol 4 Issue No 10

Popular Electronics Magazine Vol. 6 No. 1 Jan. 1957

Popular Electronics Magazine Vol 7 Iss 5 November 1957 Short-Wave Broadcast List

1957, October, Complete TV Magazine, Volume 3, #4.