Heesterman, Aart Reiner Gustaaf
Foresasting models for national economic planning .-- Dordrecht (Holland) : D. Reidel , 1970
.--IX, 132 p. 23 cm
Foresasting models for national economic planning .-- Dordrecht (Holland) : D. Reidel , 1970
.--IX, 132 p. 23 cm