Gaya APA
Hill, Napoleon. (2009).
Secrets of Napoleon Hill's mind .
Jakarta:
Indeks.
Gaya Chicago
Hill, Napoleon.
Secrets of Napoleon Hill's mind.
Jakarta:
Indeks,
2009.
Text.
Gaya MLA
Hill, Napoleon.
Secrets of Napoleon Hill's mind.
Jakarta:
Indeks,
2009.
Text.
Gaya Turabian
Hill, Napoleon.
Secrets of Napoleon Hill's mind.
Jakarta:
Indeks,
2009.
Print.