Gaya APA
GUELL, Robert C.. (2010).
Issues in economics today (5th Ed).
New York:
The McGraw-Hill Companies, Inc..
Gaya Chicago
GUELL, Robert C..
Issues in economics today.
5th Ed
New York:
The McGraw-Hill Companies, Inc.,
2010.
Text.
Gaya MLA
GUELL, Robert C..
Issues in economics today.
5th Ed
New York:
The McGraw-Hill Companies, Inc.,
2010.
Text.
Gaya Turabian
GUELL, Robert C..
Issues in economics today.
5th Ed
New York:
The McGraw-Hill Companies, Inc.,
2010.
Print.