Lua APA (7ú heag.)

NUERNBERGER, P. (1992). Increasing Executive Productivity A Unique Program For Developing The Inner Skills Of Vison, Leadership And Performance Phil Nuerenberger. Prentice - Hall.

Lua i Stíl Chicago (17ú heag.)

NUERNBERGER, Phil. Increasing Executive Productivity A Unique Program For Developing The Inner Skills Of Vison, Leadership And Performance Phil Nuerenberger. Prentice - Hall, 1992.

Lua MLA (8ú heag.)

NUERNBERGER, Phil. Increasing Executive Productivity A Unique Program For Developing The Inner Skills Of Vison, Leadership And Performance Phil Nuerenberger. Prentice - Hall, 1992.

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