Wallis, J.A. Nicholas
Intensified systems of farming in the tropics and subtropics by J.A. Nicholas Wallis - Washington, D.C. World Bank 1997 - 203p. - World Bank discussin paper no. 364 .
0821339443
Dry farming - Tropics
Agricultural systems - Tropics
Z W158
Intensified systems of farming in the tropics and subtropics by J.A. Nicholas Wallis - Washington, D.C. World Bank 1997 - 203p. - World Bank discussin paper no. 364 .
0821339443
Dry farming - Tropics
Agricultural systems - Tropics
Z W158