00631nam a2200193 a 450000500170000008200160001710000200003324500470005326000360010030000250013650000500016169000330021169000450024470000240028996400190031399700180033299900170035095200700036720251203090658.0  a577.54bENV  aWebb, Robert H.  aEnvironmental effects of off Road vehicles  aNew YorkbSpringer-Verlagc1983  axxi,534p.c22cm.bHB  aincludes bibliographical references and index  aArid land ecological systems  aoff Road vehicles- Environmental aspects  aWilshire, Howard G.  bENGcdefg_  a12836 LIBSC C  c16052d16052  00104070aPUbPUd1998-07-16g1106.00l0o577.54 ENVp12836yBK