Penggayaan APA
WESSELS, Walter J.. (2012).
Economics .
United States Of America:
Barron\'s Educational Series.
Chicago Style
WESSELS, Walter J..
Economics.
United States Of America:
Barron\'s Educational Series,
2012.
Text.
MLA Style
WESSELS, Walter J..
Economics.
United States Of America:
Barron\'s Educational Series,
2012.
Text.
Turabian Style
WESSELS, Walter J..
Economics.
United States Of America:
Barron\'s Educational Series,
2012.
Print.