Sudoc Stem: C 31.165 - Blacklight Search Results

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1. Enroute IFR air traffic survey, peak day 1956; fpreimred by A. D'Arcy Harvey and Virginia L. Jackson.

Corporate/Agency Authors:: Civil Aeronautics Administration and Commerce Dept.
Publisher:: Civil Aeronautics Administration
Date:: [1957.]
SuDoc number:: C 31.165:956