00438nam a2200133Ia 4500 260223b |||||||| |||| 00| 0 eng d 338.10913 Up71.ET Upton, Martin 16060 The economics of tropical farming systems / Cambridge: Cambridge University Press, 1996 xiv, 374p. Index WYE studies in agricultural and rural development ddc BK 0 0 0 338_109130000000000_UP71_ET 0 5411 ISI ISI 1998-08-17 0 338.10913 Up71.ET DP23325 2019-02-14 00:00:00 BK 4587 4587