APA Style
Ruffin, Roy. (1983).
Principles Of Economics .
Illinois:
SCOTT FORESMAN.
Chicago Style
Ruffin, Roy.
Principles Of Economics.
Illinois:
SCOTT FORESMAN,
1983.
.
MLA Style
Ruffin, Roy.
Principles Of Economics.
Illinois:
SCOTT FORESMAN,
1983.
.
Turabian Style
Ruffin, Roy.
Principles Of Economics.
Illinois:
SCOTT FORESMAN,
1983.
.