APA Style
Frank, Roberth. (2001).
Principles of economics (_).
New York:
Mc Graw Hill.
Chicago Style
Frank, Roberth.
Principles of economics.
_
New York:
Mc Graw Hill,
2001.
Book.
MLA Style
Frank, Roberth.
Principles of economics.
_
New York:
Mc Graw Hill,
2001.
Book.
Turabian Style
Frank, Roberth.
Principles of economics.
_
New York:
Mc Graw Hill,
2001.
Book.