Gaya APA
Francis, Charles A. (1986).
Multiple cropping systems .
New York:
Macmilan Publishing Company .
Gaya Chicago
Francis, Charles A.
Multiple cropping systems.
New York:
Macmilan Publishing Company ,
1986.
Text.
Gaya MLA
Francis, Charles A.
Multiple cropping systems.
New York:
Macmilan Publishing Company ,
1986.
Text.
Gaya Turabian
Francis, Charles A.
Multiple cropping systems.
New York:
Macmilan Publishing Company ,
1986.
Print.