-
A Brief History of the Panama Canal
... K. Rockwell
Professional Memoirs, Corps of Engineers, United States Army, and Engineer
Department at Large,
Vol.1, No.2, April-June 1909, pp.164-174
-
Stroessner's Paraguay
... John Hoyt Williams
Current History,
Vol.82, No.481, February 1983, pp.66-68, 82-83
|