Gaya APA
Wartzman, Rick. (2013).
Drucker : A Life in Pictures .
New York:
McGraw-Hill.
Gaya Chicago
Wartzman, Rick.
Drucker : A Life in Pictures.
New York:
McGraw-Hill,
2013.
Text.
Gaya MLA
Wartzman, Rick.
Drucker : A Life in Pictures.
New York:
McGraw-Hill,
2013.
Text.
Gaya Turabian
Wartzman, Rick.
Drucker : A Life in Pictures.
New York:
McGraw-Hill,
2013.
Print.