Rue, L. W., & Byar, L. Management: Skills and application (7th ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Rue, Leslie W., agus Lloyd Byar. Management: Skills and Application. 7th ed. Chicago: Irwin.
Lua MLA (9ú heag.)Rue, Leslie W., agus Lloyd Byar. Management: Skills and Application. 7th ed. Irwin.
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