Fertilizer demand and supply projections to 1980 for South America, Mexico and Central America / UNIDO - New York : United Nations, 1971. - 80 p. 25 cm. - Fertilizer industry series, monograph ; no. 6 . "United Nations publication. Sales no.:E.71.II.B.9." Bibliography: p. 79-80. Subjects--Topical Terms: Fertilizer industry --Economic aspects --Latin America.----Fertilizers --Economic aspects --Latin America.----Agriculture --Economic aspects --Latin America.----