Pfouts, Ralph William
Elementary economics : a mathematical approach... .-- New York, [etc.] : Johm Wiley , 1972
.--4 h., 335 p. grab. 24 cm.
ECONOMETRIA
Elementary economics : a mathematical approach... .-- New York, [etc.] : Johm Wiley , 1972
.--4 h., 335 p. grab. 24 cm.
ECONOMETRIA