Blanchard ,ken. (1999). Ledership by book ; tools to transform your work place. Harpercollins.
Style de citation Chicago (17e éd.)Blanchard ,ken. Ledership by Book ; Tools to Transform Your Work Place. London: Harpercollins, 1999.
Style de citation MLA (9e éd.)Blanchard ,ken. Ledership by Book ; Tools to Transform Your Work Place. Harpercollins, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.