Soil degradation :  proceedings of the Land Use Seminar on Soil Degradation, Wageningen, 13-15 October 1980 / 
sponsored by the Commission of the European Communities, Directorate-General for Agriculture, Coordination of Agricultural Research ; edited by D. Boels, D. B. Davies, A. E. Johnstone. 
 - Rotterdam :  A.A.Balkema,  1982. 
 - 280 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil degradation.