BOONE, L. E., & KURTZ, D. L. (1976). Contemporary business. The Dryden Press.
Lua i Stíl Chicago (17ú heag.)BOONE, Louis E., agus David L. KURTZ. Contemporary Business. Illinois: The Dryden Press, 1976.
Lua MLA (9ú heag.)BOONE, Louis E., agus David L. KURTZ. Contemporary Business. The Dryden Press, 1976.
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