Gaya APA
DRUCKER, Peter F.. (1999).
The executive in action .
New York:
HarperBusiness.
Gaya Chicago
DRUCKER, Peter F..
The executive in action.
New York:
HarperBusiness,
1999.
Textbook.
Gaya MLA
DRUCKER, Peter F..
The executive in action.
New York:
HarperBusiness,
1999.
Textbook.
Gaya Turabian
DRUCKER, Peter F..
The executive in action.
New York:
HarperBusiness,
1999.
Textbook.