MCKENZIE, R. B. (1980). Ekonomi issues in public policies. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MCKENZIE, Richard B. Ekonomi Issues in Public Policies. New York: McGraw-Hill, 1980.
Lua MLA (9ú heag.)MCKENZIE, Richard B. Ekonomi Issues in Public Policies. McGraw-Hill, 1980.
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