Shapiro, J. C. (1966). Workbook to accompany Lipsey and Steiner's economics. Harper & Row.
Čikaški stil citiranja (17. izdanje)Shapiro, Judith C. Workbook to Accompany Lipsey and Steiner's Economics. New York: Harper & Row, 1966.
MLA način citiranja (9. izdanje)Shapiro, Judith C. Workbook to Accompany Lipsey and Steiner's Economics. Harper & Row, 1966.
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