Gaya APA
Drucker, Peter F.. (2006).
The Effective executive : the definitive guide to getting the right things done .
New York, NY.:
HarperCollins Publ..
Gaya Chicago
Drucker, Peter F..
The Effective executive : the definitive guide to getting the right things done.
New York, NY.:
HarperCollins Publ.,
2006.
Text.
Gaya MLA
Drucker, Peter F..
The Effective executive : the definitive guide to getting the right things done.
New York, NY.:
HarperCollins Publ.,
2006.
Text.
Gaya Turabian
Drucker, Peter F..
The Effective executive : the definitive guide to getting the right things done.
New York, NY.:
HarperCollins Publ.,
2006.
Print.