Winston, G. C., O'Brien, F. S., & Tarshis, L. (1967). Guided review and workbook for Tarshis modern economics. Houghton Mifflin Company.
Chicago-viite (17. p.)Winston, Gordon C., F. Stephen O'Brien, ja Lorie Tarshis. Guided Review and Workbook for Tarshis Modern Economics. Boston: Houghton Mifflin Company, 1967.
MLA-viite (9. p.)Winston, Gordon C., et al. Guided Review and Workbook for Tarshis Modern Economics. Houghton Mifflin Company, 1967.
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