Penggayaan APA
Gardner, Bruce L.. (1987).
The economics of agricultural policies .
New York:
Macmillan.
Chicago Style
Gardner, Bruce L..
The economics of agricultural policies.
New York:
Macmillan,
1987.
Buku.
MLA Style
Gardner, Bruce L..
The economics of agricultural policies.
New York:
Macmillan,
1987.
Buku.
Turabian Style
Gardner, Bruce L..
The economics of agricultural policies.
New York:
Macmillan,
1987.
Buku.