(2011). Leadership and personal development: A toolbox for the 21st century professional. Information Age Pub.
Chicago-Zitierstil (17. Ausg.)Leadership and Personal Development: A Toolbox for the 21st Century Professional. Charlotte, N.C: Information Age Pub, 2011.
MLA-Zitierstil (9. Ausg.)Leadership and Personal Development: A Toolbox for the 21st Century Professional. Information Age Pub, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.