U.S. Navy. Office of the Chief of Naval Operations. Aviation Training Division
Socony-Vacuum Oil Co.
Hill, Ruth Henderson for The Centennial of the Peabody Institute
A Century of Progress
Manning, Timothy; Adapted by Francis J. Weber
United States Department of the Interior, U.S. Fish and Wildlife Service, Bureau of Commercial Fisheries
Cooper, Frederic Taber; Under General Editorship of Fremont Rider
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