APA Format
John C. Maxwell;
. (2011). The levels of leadership
/
. New york : Center Street
MLA Format
John C. Maxwell;
. The levels of leadership
/
. New york : Center Street, 2011
Chicago Format
John C. Maxwell;
. The levels of leadership
/
. New york : Center Street, 2011
Australian/Harvard Format
John C. Maxwell;
. 2011. The levels of leadership
/
. Center Street New york