Schalen ter vergelijking van den mètre met de Amsterdamsche el, benevens derzelver verklaring in folio : om te voegen bij de Vergelijkings-tafels tusschen de ellemaat … Schalen ter vergelijking van de Amsterdamsche el, met de Nederlandsche el (mètre) passion de la flotte française : De Mers El-Kébir à Toulon / Albert Kammerer Douglas Aircraft Company. Demonstration Flight Tests Model 8A-3N #531, Report #589, October 1939 Douglas Aircraft Company. Flight and propulsion spectrum, Past an probable future as visualized in the year 1946 Douglas Aircraft Company. Finish specification, F.S. 16, Attack bomberairplane model 8A-3N Douglas Aircraft Company. Handleiding voor den Vlieger, Douglas vliegtuig 8A-3N Douglas Aircraft Company. Model 8A-3N, Report no. 588, Airplane vibration characteristics Douglas Aircraft Company. Model 8A-3N, Bill of material Douglas Aircraft Company. Report #1064, Model 8A-3N (#548) actual weight and balance, November 156 1939 Douglas Aircraft Company. Process bulletins Douglas Aircraft Company. Supplimantary numerical drawing list model 8A-3N
