Harvey, J. (1983). Modern Economics: An introduction for business and professional students (4th. ed.). the macmillan press ltd.
Chicago (17e ed.) BronvermeldingHarvey, J. Modern Economics: An Introduction for Business and Professional Students. 4th. ed. london: the macmillan press ltd, 1983.
MLA (9e ed.) BronvermeldingHarvey, J. Modern Economics: An Introduction for Business and Professional Students. 4th. ed. the macmillan press ltd, 1983.