APA

Menkes J., . (2005). EXECUTIVE INTELLIGENCE : WHAT ALL GREAT LEADERS HAVE. new york: Collins.

Chicago

Menkes Justin, . 2005. EXECUTIVE INTELLIGENCE : WHAT ALL GREAT LEADERS HAVE. new york: Collins.

Harvard

Menkes J., . (2005). EXECUTIVE INTELLIGENCE : WHAT ALL GREAT LEADERS HAVE. new york: Collins.

MLA

Menkes Justin, . EXECUTIVE INTELLIGENCE : WHAT ALL GREAT LEADERS HAVE. new york: Collins. 2005.