Cita APA (7a ed.)

Harvey, J., & Johnson, M. (1969). Modern economics: Study guide and workbook. Macmillan.

Cita Chicago Style (17a ed.)

Harvey, Jack, y M.K Johnson. Modern Economics: Study Guide and Workbook. London [etc.]: Macmillan, 1969.

Cita MLA (9a ed.)

Harvey, Jack, y M.K Johnson. Modern Economics: Study Guide and Workbook. Macmillan, 1969.