TY  - PRO
AU  - Pingali,P.L.
AU  - Heisey,P.W.
TI  - Cereal crop productivity in developing countries:  Past trends and future prospects
PY  - 1996///
CY  - Melbourne (Australia)
PB  - Natural Resources and Environment
KW  - Cereals
KW  - AGROVOC
KW  - Developing Countries
KW  - Development policies
KW  - Plant production
KW  - Production policies
ER  -