R.Lal,ed creator W.H. Blum,ed text New York CRC 1998 monographic 558 This book aims to standardize the methodology for obtaining reliable and objective data on soil degradation. Soil Degradation Soil Crusting Soil Restoration Advance in Soil Science Soil Degradation Soil Crusting Advance in Soil Science 631.45 0-8493-7443-X