Farming systems in the tropics
Ruthenberg, Hans
Farming systems in the tropics Hans Ruthenberg - 3rd ed. - Oxford Clarendon press 1980 - xiv. 424p.; 24cm
includes index and bibliographical references
0198594828
Agriculture
630.913RUT
Farming systems in the tropics Hans Ruthenberg - 3rd ed. - Oxford Clarendon press 1980 - xiv. 424p.; 24cm
includes index and bibliographical references
0198594828
Agriculture
630.913RUT