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OBSERVATIONS ON THE MAJOR CLASSIFICATIONS OF FIELD TRIALS USED IN FARMING SYSTEMS RESEARCH
(OUA/CSTR-SAFGRAD, 1981-01)
Résultats des Essais en Milieux Paysans en 1979 et 1980
(AU-SAFGRAD, 1981)
SAFGRAD - Farming Systems Research (purdue)
(AU-SAFGRAD, 1980)