Erickson, E., & Hinshaw, E. (1966). An introduction to economics: Student workbook (2nd ed.). Allyn and Bacon.
Cita Chicago (17th ed.)Erickson, Edward, i Elton Hinshaw. An Introduction to Economics: Student Workbook. 2nd ed. Boston: Allyn and Bacon, 1966.
Cita MLA (8th ed.)Erickson, Edward, i Elton Hinshaw. An Introduction to Economics: Student Workbook. 2nd ed. Allyn and Bacon, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.