Air Progress Magazine / July 1969 / No Label / Aerobatics For Amateur

Air Progress Magazine / May 1969 / No Label / Pilot's Report Thoroughbred 310P

Air Progress Magazine / November 1969 / No Label / Famous Planes EAA Collection

Air Progress Magazine / March 1969 / No Label / Building Of A Modern Plane

Air Progress Magazine / January 1969 / No Label / The Giant Grasshoppers

Air Progress Magazine / November 1970 / No Label / Sabotage In Air Force

Air Progress Magazine / 1957/1958 / No Label / Special: History Of Aviation

Air Progress Magazine / April 1968 / No Label / Sweden's Double Delta Fighter