Koval T. Fighting Drought. From the History of Russian Agronomy In Russian /Koval T. Borba s zasukhoy. Iz istorii russkoy agronomii Agriculture in 1948, 160 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbda11ffa264ee973f.