World atlas of agriculture: Under the aegis of the international association of agriculture economics / Istituto Geografico De Agostini, volume 4 - Novara: Istituto Geografico De Agostini, 1976 - xi, 761p. Subjects--Topical Terms: Agriculture Subjects--Index Terms: Economics Universal Decimal Class. No.: R 63(084.4) / K9.4