APA (7th ed.) Citation

(1980). Directory of services for technical assistance in shipping and ports to developing countries. United Nations.

Chicago Style (17th ed.) Citation

Directory of Services for Technical Assistance in Shipping and Ports to Developing Countries. New York: United Nations, 1980.

MLA (9th ed.) Citation

Directory of Services for Technical Assistance in Shipping and Ports to Developing Countries. United Nations, 1980.