Gaya APA
Colman, David.. (1990).
Principles of agricultural economics. 1990 .
New York ::
Cambridge university press,.
Gaya Chicago
Colman, David..
Principles of agricultural economics. 1990.
New York ::
Cambridge university press,,
1990.
Printed Book.
Gaya MLA
Colman, David..
Principles of agricultural economics. 1990.
New York ::
Cambridge university press,,
1990.
Printed Book.
Gaya Turabian
Colman, David..
Principles of agricultural economics. 1990.
New York ::
Cambridge university press,,
1990.
Printed Book.