Pan American World Airways, I. (1953). Pan American survey flights: Arctic Polar Routes by DC-6B.
Chicago Style (17th ed.) CitationPan American World Airways, Inc. Pan American Survey Flights: Arctic Polar Routes by DC-6B. 1953.
MLA (9th ed.) CitationPan American World Airways, Inc. Pan American Survey Flights: Arctic Polar Routes by DC-6B. 1953.
Warning: These citations may not always be 100% accurate.