Gaya APA
dkk, C, J.
(1991).
Phosphorus Nutrition of Grain Legumes in the Semi - Arid Tropics
.
Indianapolis:
ICRISAT.
Gaya MLA
dkk, C., Johansen.
"Phosphorus Nutrition of Grain Legumes in the Semi - Arid Tropics".
Indianapolis:
ICRISAT,
1991.
Text.