Mantel, S. J. (1964). Cases in managerial decisions. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Mantel, Samuel J. Cases in Managerial Decisions. Englewood Cliffs, N. J: Prentice-Hall, 1964.
Lua MLA (9ú heag.)Mantel, Samuel J. Cases in Managerial Decisions. Prentice-Hall, 1964.
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