TY  - BOOK
AU  - Internacional Conference on Crop Productivity-Research Imperatives
AU  - Brown,A.W.a.
AU  - Byerly,T.C.
AU  - Gibbs,M.
AU  - San Pietro,A.
TI  - Crop productivity. Research imperatives
PY  - 1975///
CY  - Michigan
PB  - Michigan Agricultural Experiment Station; Foundation Kettering
KW  - Cultivo
KW  - Producción Agricola
KW  - Congresos
ER  -