APA Style
Koch, A. Robert. (1986).
Economics principles : growth and environtment. .
Westport Connecticut:
The Avi Publishing Company.
Chicago Style
Koch, A. Robert.
Economics principles : growth and environtment..
Westport Connecticut:
The Avi Publishing Company,
1986.
Text.
MLA Style
Koch, A. Robert.
Economics principles : growth and environtment..
Westport Connecticut:
The Avi Publishing Company,
1986.
Text.
Turabian Style
Koch, A. Robert.
Economics principles : growth and environtment..
Westport Connecticut:
The Avi Publishing Company,
1986.
Print.