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by Food and Agriculture Organization of the United Nations (FAO).; Economic Commission for Europe.;
Year: 1972., Callno: 63 AGR [Q]
Book
by United Nations.; Food and Agriculture Organization of the United Nations (FAO).; Economic Commission for Europe.;
Year: 1987., Callno: 620.9:63 CHA [Q]
Book
by ensive Agriculture (1983 : Geneva, Swtizerland); Economic Commission for Europe.; Symposium on Research into Agro-technical Methods Aiming at Increasing the Productivity of Crops Co-efficients for the Most Efficient Use of Fertilizer Nutrients and Means f
Year: 1983., Callno: 631.81 SYM
Book