Maxwell, J. C. (1999). The 21 indispensable qualities of a leader: Becoming the person others will want to follow. T. Nelson.
Chicago-referens (17:e uppl.)Maxwell, John C. The 21 Indispensable Qualities of a Leader: Becoming the Person Others Will Want to Follow. Nashville, TN: T. Nelson, 1999.
MLA-referens (9:e uppl.)Maxwell, John C. The 21 Indispensable Qualities of a Leader: Becoming the Person Others Will Want to Follow. T. Nelson, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.