Winston, G. C., O'Brien, F. S., & Tarshis, L. (1967). Guided review and workbook for Tarshis modern economics. Houghton Mifflin Company.
Cita Chicago (17th ed.)Winston, Gordon C., F. Stephen O'Brien, i Lorie Tarshis. Guided Review and Workbook for Tarshis Modern Economics. Boston: Houghton Mifflin Company, 1967.
Cita MLA (9th ed.)Winston, Gordon C., et al. Guided Review and Workbook for Tarshis Modern Economics. Houghton Mifflin Company, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.