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.
Chicago-Zitierstil (17. Ausg.)United Nations. Technical Assistance Administration und Ricardo M. Ortiz. The Harbor System of El Salvador: Prepared for the Government of El Salvador by Ricardo M. Ortiz. New York, 1954.
MLA-Zitierstil (9. Ausg.)United Nations. Technical Assistance Administration und Ricardo M. Ortiz. The Harbor System of El Salvador: Prepared for the Government of El Salvador by Ricardo M. Ortiz. 1954.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.