Zakboek Sovjet Materieel. Wapens, Voertuigen en Helicopters Identification friend or foe : being the story of aircraft recognition / written and designed by Tim Hamilton Military aircraft recognition 1970 / John W.R. Taylor Koninklijke luchtmacht 70 / C. van der Velden en E. Ragas the new observer’s series New Observer's Book of Aircraft / compiled by William Green ; with silhouettes by Dennis Punnett Visual aircraft recognition / Headquarters, Department of the Army - USA Field Manual, FM 44-30 Aids to Weapon Training some ideas on improvisation aanduiding van militaire vliegtuigen in Nederland / [P.J.M. Kamps, vrijwillig medewerker, Militaire Luchtvaart Museum]
