Technical change in maize production : a global perspective
/by Derek Byerlee and Miguel A. López-Pereira
- México, D.F. : Centro Internacional de Mejoramiento de Maíz y Trigo, 1994.
- 31 p. : gráfs. ; tablas
- Economics. Working paper ; 94-02 .
- CIMMYT .
- Economics. Working paper ; 94-02 .