Gaya APA
DUCKHAM, A.N., MASEFIELD, G.B.. (1969).
Farming Systems Of The World .
New York:
Praeger Publishers.
Gaya Chicago
DUCKHAM, A.N., MASEFIELD, G.B..
Farming Systems Of The World.
New York:
Praeger Publishers,
1969.
Teks.
Gaya MLA
DUCKHAM, A.N., MASEFIELD, G.B..
Farming Systems Of The World.
New York:
Praeger Publishers,
1969.
Teks.
Gaya Turabian
DUCKHAM, A.N., MASEFIELD, G.B..
Farming Systems Of The World.
New York:
Praeger Publishers,
1969.
Teks.