Gaya APA
Hill,R Carter. (2012).
Principles of Economics (4th.ed).
[S.l]:
John Wiley $ Sons,Inc.
Gaya Chicago
Hill,R Carter.
Principles of Economics.
4th.ed
[S.l]:
John Wiley $ Sons,Inc,
2012.
Teks.
Gaya MLA
Hill,R Carter.
Principles of Economics.
4th.ed
[S.l]:
John Wiley $ Sons,Inc,
2012.
Teks.
Gaya Turabian
Hill,R Carter.
Principles of Economics.
4th.ed
[S.l]:
John Wiley $ Sons,Inc,
2012.
Teks.