APA
United Nations Industrial Development Organization, United Nations Industrial Development Organization, . (1972). Hydrogenation of coal and cottons. New: York United Nations U S A.
Chicago
United Nations Industrial Development Organization, United Nations Industrial Development Organization, . 1972. Hydrogenation of coal and cottons. New: York United Nations U S A.
Harvard
United Nations Industrial Development Organization, United Nations Industrial Development Organization, . (1972). Hydrogenation of coal and cottons. New: York United Nations U S A.
MLA
United Nations Industrial Development Organization, United Nations Industrial Development Organization, . Hydrogenation of coal and cottons. New: York United Nations U S A. 1972.