Gaya APA
Samuelson, Paul A., NORDH. (2001).
ECONOMICS (17).
:
.
Gaya Chicago
Samuelson, Paul A., NORDH.
ECONOMICS.
17
:
,
2001.
Text.
Gaya MLA
Samuelson, Paul A., NORDH.
ECONOMICS.
17
:
,
2001.
Text.
Gaya Turabian
Samuelson, Paul A., NORDH.
ECONOMICS.
17
:
,
2001.
Print.