Albers, H. H. (1974). Principles of management: A modern approach (4th ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Albers, Henry Herman. Principles of Management: A Modern Approach. 4th ed. New York: Wiley, 1974.
Lua MLA (9ú heag.)Albers, Henry Herman. Principles of Management: A Modern Approach. 4th ed. Wiley, 1974.
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