Gaya APA
Ries, AL. (1996).
Focus: The Future Of Your Company Depends On It .
London:
HarperCollins Publishers.
Gaya Chicago
Ries, AL.
Focus: The Future Of Your Company Depends On It.
London:
HarperCollins Publishers,
1996.
Text.
Gaya MLA
Ries, AL.
Focus: The Future Of Your Company Depends On It.
London:
HarperCollins Publishers,
1996.
Text.
Gaya Turabian
Ries, AL.
Focus: The Future Of Your Company Depends On It.
London:
HarperCollins Publishers,
1996.
Print.