Upton, Martin .
Economic of tropical farming systems / by Martin Upton. - Cambridge : Cambridge University Press , 1996 - 374p :
0-521-63511-X
Tropical farming
X8(J) / N6
Economic of tropical farming systems / by Martin Upton. - Cambridge : Cambridge University Press , 1996 - 374p :
0-521-63511-X
Tropical farming
X8(J) / N6