National Planning Institute. (1980). a study on development of the egyptian national fleet. National Planning Institute،.
Chicago-referens (17:e uppl.)National Planning Institute. A Study on Development of the Egyptian National Fleet. cairo: National Planning Institute،, 1980.
MLA-referens (9:e uppl.)National Planning Institute. A Study on Development of the Egyptian National Fleet. National Planning Institute،, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.