O'Donnell, C. (1965). Cases in general management. Irwin.
Lua i Stíl Chicago (17ú heag.)O'Donnell, Cyril. Cases in General Management. Homewood, Ill: Irwin, 1965.
Lua MLA (9ú heag.)O'Donnell, Cyril. Cases in General Management. Irwin, 1965.
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