TY  - TH
AU  - Piedra Constantino,R.de la
TI  - Diagnostico, base de un programa de investigacion en campos de agricultores:  Caso La Fraylesca, Chis
PY  - 1987///
CY  - Villaflores, Chis. (Mexico)
PB  - Piedra Constantino, R. de la, 
KW  - Chiapas
KW  - Maize
KW  - AGROVOC
KW  - Mexico
KW  - Plant production
KW  - Production economics
KW  - Production factors
KW  - Production structure
KW  - Research projects
KW  - Technology transfer
KW  - Zea mays
KW  - Farming systems
N1  - Thesis (B. Sc.) Universidad Autonoma de Chiapas, 1987
ER  -