Farming systems of the world
Duckham, A.N., Masfield, G.B.
Farming systems of the world by A.N. Duckham and G.B. Masfield - London Chatto and Windus 1971 - 542 p.
Farming Systems
Cropping System
631.58 / D 834 F
Farming systems of the world by A.N. Duckham and G.B. Masfield - London Chatto and Windus 1971 - 542 p.
Farming Systems
Cropping System
631.58 / D 834 F