(en) Timothy J. O'Callaghan, The Aviation Legacy of Henry & Edsel Ford, Ann Arbor, Wayne State University Press, , 1re éd., 208 p. (ISBN978-1-928623-01-4, OCLC48229053, LCCN00135369), p. 163–164
(en) Timothy J. O'Callaghan, The Aviation Legacy of Henry & Edsel Ford, Ann Arbor, Wayne State University Press, , 1re éd., 208 p. (ISBN978-1-928623-01-4, OCLC48229053, LCCN00135369), p. 163–164