Gaya APA
The Principles of Economics, with Applications to Practical Problems. (2012).
:
The Century Co..
Gaya Chicago
The Principles of Economics, with Applications to Practical Problems.
.
:
The Century Co.,
2012.
.
Gaya MLA
The Principles of Economics, with Applications to Practical Problems.
.
:
The Century Co.,
2012.
.
Gaya Turabian
The Principles of Economics, with Applications to Practical Problems.
:
The Century Co.,
2012.
.