Lua APA (7ú heag.)

HUMBLE JOHN. (1971). MANAGEMENT BY OBJECTIVES. MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

HUMBLE JOHN. MANAGEMENT BY OBJECTIVES. NEW YORK: MCGRAW-HILL, 1971.

Lua MLA (9ú heag.)

HUMBLE JOHN. MANAGEMENT BY OBJECTIVES. MCGRAW-HILL, 1971.

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