APA Style
thomas, robert p.. (1990).
ECONOMICS .
Chicago:
The Dryden Press.
Chicago Style
thomas, robert p..
ECONOMICS .
Chicago:
The Dryden Press,
1990.
Text.
MLA Style
thomas, robert p..
ECONOMICS .
Chicago:
The Dryden Press,
1990.
Text.
Turabian Style
thomas, robert p..
ECONOMICS .
Chicago:
The Dryden Press,
1990.
Print.