Gaya APA
Koestenbaum, P. (1991).
Leadership : the inner side of greatness : a philosophy for leaders .
San Francisco, CA:
Jossey-Bass.
Gaya MLA
Koestenbaum, Peter.
"Leadership : the inner side of greatness : a philosophy for leaders".
San Francisco, CA:
Jossey-Bass,
1991.
Text.