Wall, B. G. v. d. (2015). Göttinger Monograph N: German research and development on rotary-wing aircraft (1939 - 1945). American Institute of Aeronautics and Astronautics.
Chicago Style (17th ed.) CitationWall, Berend Gerdes van der. Göttinger Monograph N: German Research and Development on Rotary-wing Aircraft (1939 - 1945). Reston, VA: American Institute of Aeronautics and Astronautics, 2015.
MLA (9th ed.) CitationWall, Berend Gerdes van der. Göttinger Monograph N: German Research and Development on Rotary-wing Aircraft (1939 - 1945). American Institute of Aeronautics and Astronautics, 2015.
Warning: These citations may not always be 100% accurate.