Gaya APA
Parkin, Michael. (2005).
Economics (7e).
Boston:
Addison Wesley.
Gaya Chicago
Parkin, Michael.
Economics.
7e
Boston:
Addison Wesley,
2005.
Buku.
Gaya MLA
Parkin, Michael.
Economics.
7e
Boston:
Addison Wesley,
2005.
Buku.
Gaya Turabian
Parkin, Michael.
Economics.
7e
Boston:
Addison Wesley,
2005.
Buku.