Gaya APA
OSullivan, Arthur, Sheffrin, Steven M. (1998).
Economics : principles and tools .
London:
Prentice Hall.
Gaya Chicago
OSullivan, Arthur, Sheffrin, Steven M.
Economics : principles and tools.
London:
Prentice Hall,
1998.
Buku.
Gaya MLA
OSullivan, Arthur, Sheffrin, Steven M.
Economics : principles and tools.
London:
Prentice Hall,
1998.
Buku.
Gaya Turabian
OSullivan, Arthur, Sheffrin, Steven M.
Economics : principles and tools.
London:
Prentice Hall,
1998.
Buku.