90th & 91st Aero Squadrons, The: Two Accounts of American Pilots and Aircraft During the First World War-The Ninetieth Aero Squadron American Expeditionary Forces by Leland M. Carver, Gustaf A. Lindstrom and A. T. Foster & History of the 91st Aero Squadron Air Service U. S. A. by George C
Paperback by Carver, Leland M; Kenney, George C; Guilbert, Horace Moss