Canal Zone." Journal of Historical Geography 28.1 (2002): 85–99, covers 1910–1940. Greene, Julie (2009). The Canal Builders: Making America's Empire at the Panama Canal. New York: The Penguin Press. Greene, Julie. (2004) "Spaniards on the Silver roll: Labor troubles and Liminality in the Panama Canal Zone, 1904–1914." International Labor and Working-Class History 66 (2004): 78–98. Harding, Robert C. (2001). Military Foundations of Panamanian Politics. Transaction Publishers. Harding, Robert C. (2006). The History of Panama. Greenwood Publishing. Knapp, Herbert and Knapp, Mary (1984). Red, White and Blue Paradise: The American Canal Zone in Panama. San Diego: Harcourt, Brace, and Jovanovich. . Major, John (1993). Prize Possession: The United States and the Panama Canal, 1903–1979. Cambridge: Cambridge University Press. . McCullough, David (1977). The Path Between the Seas: The Creation of the Panama Canal, 1870–1914. New York: Simon and Schuster. . Mellander, Gustavo A., Mellander, Nelly, Charles Edward Magoon: The Panama Years. Río Piedras, Puerto Rico: Editorial Plaza Mayor. ISBN 1-56328-155-4. OCLC 42970390. (1999) Mellander, Gustavo A., The United States in Panamanian Politics: The Intriguing Formative Years." Danville, Ill.: Interstate Publishers. OCLC 138568. (1971) External links Official Handbook of the Panama Canal—1915 Governor Parfitt's Address at Flag-lowering Ceremonies September 30, 1979 Maps of the Canal Zone Live Panama Canal webcams Air Defense of the Panama Canal 1958–1970 Panama & the Canal Digital Collection Panama Canal Centennial Online Exhibit Medicine in the Panama Canal Zone: The Samuel Taylor Darling Memorial Library Archives 1903 establishments in the United States 1979 disestablishments in the United States International borders Regions of Central America