APA-viite (7. p.)

National Planning Institute. (1980). a study on development of the egyptian national fleet. National Planning Institute،.

Chicago-viite (17. p.)

National Planning Institute. A Study on Development of the Egyptian National Fleet. cairo: National Planning Institute،, 1980.

MLA-viite (9. p.)

National Planning Institute. A Study on Development of the Egyptian National Fleet. National Planning Institute،, 1980.

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