Gaya APA
Heyne, Paul T. (2000).
The Economic way of thinking (9e).
New Jersey:
Prentice Hall.
Gaya Chicago
Heyne, Paul T.
The Economic way of thinking.
9e
New Jersey:
Prentice Hall,
2000.
Buku.
Gaya MLA
Heyne, Paul T.
The Economic way of thinking.
9e
New Jersey:
Prentice Hall,
2000.
Buku.
Gaya Turabian
Heyne, Paul T.
The Economic way of thinking.
9e
New Jersey:
Prentice Hall,
2000.
Buku.