Books by H. van Keulen
Science For Agriculture And Rural Development In Lowincome Countries
Economic policy and sustainable land use
Input and Output Coefficients
Input and Output Coefficients of Various Cropping and Livestock Systems in the European Communities
Crop response to the supply of
Crop response to the supply of macronutrients
Simulation of water use and he
Simulation of water use and herbage growth in arid regions