Why have prop accidents? /
by H.G. Crowley.

APA Citation

Crowley, H. G., United States. Civil Aeronautics Board. (1947). Why have prop accidents? Washington, D.C.: Civil Aeronautics Board, Safety Bureau .

MLA Citation

Crowley, Harold G, and United States. Civil Aeronautics Board. Why Have Prop Accidents? Washington, D.C.: Civil Aeronautics Board, Safety Bureau , 1947.

Warning: These citations may not always be complete (especially for serials).