APA Style
samuelson, paul a. nordhaus, william d.. (2010).
ECONOMICS .
:
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Chicago Style
samuelson, paul a. nordhaus, william d..
ECONOMICS .
:
,
2010.
Text.
MLA Style
samuelson, paul a. nordhaus, william d..
ECONOMICS .
:
,
2010.
Text.
Turabian Style
samuelson, paul a. nordhaus, william d..
ECONOMICS .
:
,
2010.
Print.