Fertilizer industry. New York: United Nations, 1969 IX, 76 p.
Fertilizer industry. New York: United Nations, 1969 IX, 76 p.
(1969) Fertilizer industry, New York: United Nations IX, 76 p.
(1969). Fertilizer industry. Based on the proceedings of the International symposium on Industrial Development (Athens, November-December 1967). New York: United Nations, IX, 76 p.
Fertilizer industry: Based on the proceedings of the International symposium on Industrial Development (Athens, November-December 1967). New York: United Nations; 1969. p. IX, 76 p.