Gaya APA
Drucker, P, F.
(2011).
HBR's 10 Must Reads on Leadership
.
Boston:
Hardvard Business School Publishing.
Gaya MLA
Drucker, Peter, F..
"HBR's 10 Must Reads on Leadership".
Boston:
Hardvard Business School Publishing,
2011.
Teks (Text).