HANSON, K. O. Managerial Statistics Kermit O. Hanson. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)HANSON, Kermit O. Managerial Statistics Kermit O. Hanson. Prentice Hall.
Lua MLA (8ú heag.)HANSON, Kermit O. Managerial Statistics Kermit O. Hanson. Prentice Hall.
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