SAMUELSON, W. F. (1992). Managerial Economics / William F. Samuelson And Stephen G. Mark. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)SAMUELSON, William F. Managerial Economics / William F. Samuelson And Stephen G. Mark. The Dryden Press, 1992.
Lua MLA (8ú heag.)SAMUELSON, William F. Managerial Economics / William F. Samuelson And Stephen G. Mark. The Dryden Press, 1992.
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