Eocene and Oligocene larger Foraminifera from the Panama Canal Zone and vicinity. - Cole, W. Storrs (William Storrs), 1902-1989. (Washington, U.S. Govt. Print. Off., 1952)
"Prepared under the auspices of the Technical Cooperation Administration of the United States Department of State."
"References cited": p. 37-38.
Keywords: Foraminifera, Fossil -- Panama -- Canal Zone; Paleontology -- Eocene; Paleontology -- Oligocene