Rijtema, P. E.

An Analysis of Actual Evapotranspiration Rijtema, P.E. 1965 Calculation of Production of Potatoes Rijtema, P.E 1970 Water in the unsaturated zone edited by P. E. Rijtema and H. Wassink 1968 Water in the unsaturated zone; proceedings of the Wageningen Symposium UNESCO 1968