Winkelman, Don
The Traditional farmer: maximization and mechanization / Don Winkelman - Paris Economic co-operation and development 1972 - v, 94 p.
112866
Agriculture-economic
338.1 / WIN
The Traditional farmer: maximization and mechanization / Don Winkelman - Paris Economic co-operation and development 1972 - v, 94 p.
112866
Agriculture-economic
338.1 / WIN