Cita APA (7a ed.)
Koebel, W. H. (1914). Central America, Guatemala, Nicaragua, Costa Rica, Honduras, Panama and Salvador. C. Scribner's sons.
Cita Chicago Style (17a ed.)
Koebel, William Henry. Central America, Guatemala, Nicaragua, Costa Rica, Honduras, Panama and Salvador. New York: C. Scribner's sons, 1914.
Cita MLA (9a ed.)
Koebel, William Henry. Central America, Guatemala, Nicaragua, Costa Rica, Honduras, Panama and Salvador. C. Scribner's sons, 1914.
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