Gaya APA
Celis, R. (1991).
Adopting Improved Farm Technology : A Study Of Smallholder Farmers In Eastern Province, Zambia (I).
Washington:
IFPRI.
Gaya MLA
Celis, Rafael.
"Adopting Improved Farm Technology : A Study Of Smallholder Farmers In Eastern Province, Zambia".
I
Washington:
IFPRI,
1991.
Text.