Gaya APA
Guell, Robert C.. (2008).
Issues in economics today (ed.4).
Boston:
McGraw-Hill.
Gaya Chicago
Guell, Robert C..
Issues in economics today.
ed.4
Boston:
McGraw-Hill,
2008.
Text.
Gaya MLA
Guell, Robert C..
Issues in economics today.
ed.4
Boston:
McGraw-Hill,
2008.
Text.
Gaya Turabian
Guell, Robert C..
Issues in economics today.
ed.4
Boston:
McGraw-Hill,
2008.
Print.