United States. General Accounting Office
Jim DeFede
Juliette Benzoni
Organisation for Economic Co-operation and Development
Dieter Klinger
Page, Stephen
Horace Porter
John Malcolm Brinnin
William W. Kratville
Phyllis F. Scheinberg
August Mencken
Imogen Edwards-Jones
United States. Congress. Senate. Committee on Commerce, Science, and Transportation.
Canadian Transport Commission. Research Branch.
Tadeusz Dyr
Cecil J. Allen
Alexander Frater
Robert Peschkes
United States. Congress. House. Committee on Merchant Marine and Fisheries.