Blanchard ,ken. (1999). Ledership by book ; tools to transform your work place. Harpercollins.
Cita Chicago (17th ed.)Blanchard ,ken. Ledership by Book ; Tools to Transform Your Work Place. London: Harpercollins, 1999.
Cita MLA (9th ed.)Blanchard ,ken. Ledership by Book ; Tools to Transform Your Work Place. Harpercollins, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.