Sloman, J., & Sutcliffe, M. (1994). Economics workbook (2nd ed.). Harvester Wheatsheaf [etc.].
Cita Chicago Style (17a ed.)Sloman, John, y Mark Sutcliffe. Economics Workbook. 2nd ed. New York [etc.]: Harvester Wheatsheaf [etc.], 1994.
Cita MLA (9a ed.)Sloman, John, y Mark Sutcliffe. Economics Workbook. 2nd ed. Harvester Wheatsheaf [etc.], 1994.
Precaución: Estas citas no son 100% exactas.