Alice Helen Frankel.
Air transportation workers. (Occupational briefs on America's major job fields, no. 68)
R663375. Air transportation workers. By Alice Helen Frankel. (Occupational briefs on America's major job fields, no. 68) NM: rewriting. © 28Oct49; AA132634. Science Research Associates, Inc. (PWH); 13Jun77; R663375.
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