APA
United Naitons Industrial Development Organization, United Naitons Industrial Development Organization, . (1978). Process technologies for nitrogen fertilizers. New: York United Nations USA.
Chicago
United Naitons Industrial Development Organization, United Naitons Industrial Development Organization, . 1978. Process technologies for nitrogen fertilizers. New: York United Nations USA.
Harvard
United Naitons Industrial Development Organization, United Naitons Industrial Development Organization, . (1978). Process technologies for nitrogen fertilizers. New: York United Nations USA.
MLA
United Naitons Industrial Development Organization, United Naitons Industrial Development Organization, . Process technologies for nitrogen fertilizers. New: York United Nations USA. 1978.