A programmed guide to The economic problem :
HANNAFORD, John.
A programmed guide to The economic problem : John Hannaford. - 3d ed. - Englewood Cliffs Prentice-Hall, 1972. - 231 p. illustrations ; 28 cm
0132269287 9780132269285
Economics--Programmed instruction.
Economics.
A programmed guide to The economic problem : John Hannaford. - 3d ed. - Englewood Cliffs Prentice-Hall, 1972. - 231 p. illustrations ; 28 cm
0132269287 9780132269285
Economics--Programmed instruction.
Economics.