APA Style
Helppie, charles e.. (1974).
RESEARCH GUIDE IN ECONOMICS (First Edition).
New Jersey, USA:
general learning press.
Chicago Style
Helppie, charles e..
RESEARCH GUIDE IN ECONOMICS.
First Edition
New Jersey, USA:
general learning press,
1974.
Print.
MLA Style
Helppie, charles e..
RESEARCH GUIDE IN ECONOMICS.
First Edition
New Jersey, USA:
general learning press,
1974.
Print.
Turabian Style
Helppie, charles e..
RESEARCH GUIDE IN ECONOMICS.
First Edition
New Jersey, USA:
general learning press,
1974.
Print.