Gaya APA
T.Johnson, D. (1990).
The Business Of Farming : A Guide To Farm Business Management In The Tropics (Edisi 2).
New York:
Macmillan.
Gaya MLA
T.Johnson, David.
"The Business Of Farming : A Guide To Farm Business Management In The Tropics".
Edisi 2
New York:
Macmillan,
1990.
Teks.