Bennett, Leon. . College Station, Texas: Texas A&M University Press, 2006. . Connors, John F. . Carrollton, Texas: Squadron/Signal Publications, Inc., 1981. . Gray, Peter and Owen Thetford. . London: Putnam & Company Ltd., 1970. 2nd ed. . Green, William and Gordon Swanborough. . London: Salamander Books, 1994. . Grosz, Peter M. . Berkhamsted, Herts, UK: Albatros Publications, 2003. . Guttman, Jon. . Oxford, UK: Osprey Publishing, 2009. . Herris, Jack. (Great War Aircraft in Profile, Volume 4). Boulder, Colorado: Flying Machine Press, 2001. . Mikesh, Robert C. . Washington, D.C.: Smithsonian Institution Press, 1980. VanWyngarden, Greg. . Oxford, UK: Osprey Publishing, 2007. .