Economic concepts :
Bingham, Robert C
Economic concepts : a programmed approach. / Robert C Bingham. - 2nd ed. - New York: McGraw-Hill, 1969 - 316 p.; 22 cm.
Economics --
Programmed instruction.
330 / BIE 1969
Economic concepts : a programmed approach. / Robert C Bingham. - 2nd ed. - New York: McGraw-Hill, 1969 - 316 p.; 22 cm.
Economics --
Programmed instruction.
330 / BIE 1969