Conditions and improvement of crop production, stock-raising and rural industries : contributions
by the International Institute of Agriculture
(European Conference on Rural Life, 1939 . Technical documentation ; document no. 5)(Series of League of Nations publications, . European Conference on Rural Life ; 7)
League of Nations, 1939
Crop production, stock-raising and rural industries
"Official no.: C. 22. M. 14. 1939; Conf. E.V.R.10."
Includes bibliographical references
League of Nations
League of Nations