チョークス・オーシャン・エアウェイズ
1 2 3 Stieghorst, Tom (October 19, 2007), “Chalk's Airlines loses flight license”, South Florida Sun-Sentinel, South Palm Beach County Edition: pp. 1A, 6A, http://articles.sun-sentinel.com/2007-10-19/news/0710180726_1_chalk-s-seaplanes-airport-international-airlines
↑ The World's Oldest International Airline, Visit Florida, オリジナルのSeptember 28, 2007時点におけるアーカイブ。, https://web.archive.org/web/20070928120227/http://media.visitflorida.org/travel/facts/?ID=40 2007年5月27日閲覧。
↑ Goodnough, Abby; Wald, Matthew L. (2005年12月22日). “Airline Grounds Fleet After Seaplane Crash”. The New York Times. December 22, 2005.