Изготовление электронных копий любых изданий

Effluents from livestock Proc. of a Seminar to discuss work carried out within the EEC under the progr. Effluents from intensive livestock…held at Bad Zwischenahn, 2-5 Oct., 1979 Spons. by the Commiss. of the Europ. communities, Directorate-general for agriculture, Co-ordination of agr. research ; Ed. J.K.R. Gasser