Ruthenberg, Hans
Farming systems in the tropics / Hans Ruthenberg ; with contributions by J.D. MacArthur, H. D. Zandstra, and M.P. Collinson. - 3rd ed. - Oxford : New York : Clarendon Press, Oxford University Press, 1980. - xxii, 424 p. : ill. (some col.)
019859481X
Agricultural systems--Tropics.
Farm management--Tropics.
630.913 / R974
Farming systems in the tropics / Hans Ruthenberg ; with contributions by J.D. MacArthur, H. D. Zandstra, and M.P. Collinson. - 3rd ed. - Oxford : New York : Clarendon Press, Oxford University Press, 1980. - xxii, 424 p. : ill. (some col.)
019859481X
Agricultural systems--Tropics.
Farm management--Tropics.
630.913 / R974