TY  - BK
AU  - Borlaug,N.E.
TI  - The green revolution:  Past successes and future challenges
U1  - 633.11072 
PY  - 1997///
CY  - Ciudad Obregón, Son. (México)
PB  - INIFAP
KW  - Agricultural development
KW  - AGROVOC
KW  - Economic development
KW  - High-yielding varieties
ER  -