APA Style
Samuelson, Paul. (2005).
Economic Elevent Edition .
:
.
Chicago Style
Samuelson, Paul.
Economic Elevent Edition.
:
,
2005.
.
MLA Style
Samuelson, Paul.
Economic Elevent Edition.
:
,
2005.
.
Turabian Style
Samuelson, Paul.
Economic Elevent Edition.
:
,
2005.
.