APA Style
Friedberg, E, [, M, E.
(c2010.).
Economics
.
Guilford, CT:
McGraw-Hill/Dushkin.
MLA Style
Friedberg, Erhard, [Hilderbrand,, Mary, E.].
"Economics".
Guilford, CT:
McGraw-Hill/Dushkin,
c2010..
Text.