United Nations. Technical Assistance Administration & Ortiz, R. M. (1954). The harbor system of El Salvador: Prepared for the Government of El Salvador by Ricardo M. Ortiz.
Style de citation Chicago (17e éd.)United Nations. Technical Assistance Administration et Ricardo M. Ortiz. The Harbor System of El Salvador: Prepared for the Government of El Salvador by Ricardo M. Ortiz. New York, 1954.
Style de citation MLA (9e éd.)United Nations. Technical Assistance Administration et Ricardo M. Ortiz. The Harbor System of El Salvador: Prepared for the Government of El Salvador by Ricardo M. Ortiz. 1954.
Attention : ces citations peuvent ne pas être correctes à 100%.