Gaya APA
Knutson, Ronald D.. (1983).
Agricultural and food policy .
New Jersey:
Prentice Hall.
Gaya Chicago
Knutson, Ronald D..
Agricultural and food policy.
New Jersey:
Prentice Hall,
1983.
.
Gaya MLA
Knutson, Ronald D..
Agricultural and food policy.
New Jersey:
Prentice Hall,
1983.
.
Gaya Turabian
Knutson, Ronald D..
Agricultural and food policy.
New Jersey:
Prentice Hall,
1983.
.