System adopted by Engineering Division of U. S. Army Air Service.
Naming and classifying airplanes
Aviation
Aviation ; 10 , n 13
1921
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1929
|Engineering Index Backfile | 1929
Engineering Index Backfile | 1929
|Engineering Index Backfile | 1927
|Engineering Index Backfile | 1933