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1by Voermans, J.A.M. (Research Inst. for Pig Husbandry, AB Rosmalen (Netherlands)), FAO, Rome (Italy). Regional Office for Europe eng, European Cooperative Research Network on Animal Waste Utilization. Consultation eng 25-28 Sep 1990 Bologna (Italy), Hall, J. (ed.), Centro Ricerche Produzioni Animali, Reggio Emilia (Italy) oth
Published 1991Texto bibliotecaFAO IT