Gaya APA
Conger, J, A., Riggio, R, E. (2007).
The Practice Of Leadership developing the next generation of leader .
United State:
Jossey-Bass.
Gaya MLA
Conger, Jay, A.., Riggio, Ronald, E..
"The Practice Of Leadership developing the next generation of leader".
United State:
Jossey-Bass,
2007.
Text.