The Finished Panama Canal Svenska Amerikanaren Amerikas Mest Lasta Och Bast Omtyckta Svenska Tidning America S Most Read And Best Liked Swedish Newspaper Birdseye View Of The Panama Zone
www.jamesarsenault.com
Chief Engineers Of The Panama Canal American Experience Official Site Pbs
www.pbs.org
Panama Canal History Construction Expansion Facts Britannica
www.britannica.com