Gaya APA
Cohen, William A.. (2013).
DRUCKER ON MARKETING .
New York:
MCGRAW-HILL.
Gaya Chicago
Cohen, William A..
DRUCKER ON MARKETING.
New York:
MCGRAW-HILL,
2013.
Text.
Gaya MLA
Cohen, William A..
DRUCKER ON MARKETING.
New York:
MCGRAW-HILL,
2013.
Text.
Gaya Turabian
Cohen, William A..
DRUCKER ON MARKETING.
New York:
MCGRAW-HILL,
2013.
Print.