APA (7e ed.) Bronvermelding

United Nations Industrial Development Organization. (1972). Information sources on the cement and concrete industry. United Nations.

Chicago (17e ed.) Bronvermelding

United Nations Industrial Development Organization. Information Sources on the Cement and Concrete Industry. New York: United Nations, 1972.

MLA (9e ed.) Bronvermelding

United Nations Industrial Development Organization. Information Sources on the Cement and Concrete Industry. United Nations, 1972.