Maize in north Veracruz State, Mexico Auteur(s) : Harrington, Larry CIMMYT Economics Program | Partager |
Farmers' practices, production problems and research opportunities in barley production in the CalpulalpanApan Valley, Mexico Auteur(s) : Byerlee, Derek Harrington, Larry Marko, Paul | Partager |
Exercises in the economic analysis of agronomic data Auteur(s) : Harrington, Larry Perrin, Richard K | Partager |