APA Style
Gregory,G Robinson. (1987).
Resource Economics for Foresters .
:
John Wiley.
Chicago Style
Gregory,G Robinson.
Resource Economics for Foresters.
:
John Wiley,
1987.
Text.
MLA Style
Gregory,G Robinson.
Resource Economics for Foresters.
:
John Wiley,
1987.
Text.
Turabian Style
Gregory,G Robinson.
Resource Economics for Foresters.
:
John Wiley,
1987.
Print.