TY  - BOOK
AU  - Singh, Inderjit.
AU  - Day, Richard H.
TI  - Factor utilization and substitution in economic development ; a case study green revolution
T2  - Workshop series
PY  - 1973///
CY  - (s.l.)
PB  - Social Systems Research Institute
KW  - Agricultura
KW  - Innovaciones tecnológicas
KW  - Desarrollo económico
ER  -