Nitrogen losses and surface run-off from landspreading of manures : proceedings on EEC Workshop of Coordination of Research on Effluents from Livestock, held at The Agricultural Institute, Johnstown Castle Research Centre, Wexford, Ireland, May 20-22, 1980 sponsored by the Commisssion of the European Communities; edited by J. C. Brogan. - Commission of the European Communities.; Brogan (Development in plant and soil sciences, 1981)