TY  - BOOK
AU  - Dalrymple, Dana G.
TI  - Technological change in agriculture: effects and implications for the developing nations
U1  - 630.2 
PY  - 1969///
CY  - Washington, D.C.
PB  - International Development. U.S. Foreign Agricultural Service
KW  - Agricultura
KW  - Innovaciones tecnológicas
KW  - Industrias agrícolas
ER  -