Emblem of the 42d Bombardment Squadron (World War II)
United States Army Air Force
1944
Mauer, Mauer (1969), Combat Squadrons of the Air Force, World War II, Air Force Historical Studies Office, Maxwell AFB, Alabama. <a href="//commons.wikimedia.org/wiki/Special:BookSources/0892010975" title="Special:BookSources/0892010975">ISBN 0892010975</a>