APA Style
rand m, c nally. ().
Economics Concepts & Choices .
:
.
Chicago Style
rand m, c nally.
Economics Concepts & Choices.
:
,
.
Text.
MLA Style
rand m, c nally.
Economics Concepts & Choices.
:
,
.
Text.
Turabian Style
rand m, c nally.
Economics Concepts & Choices.
:
,
.
Print.