=LDR 00000nam a2200000ui 4500 =001 4441 =008 250530s1997\\\\xx\|||||||||||||||||eng\d =082 04$a631.4 WHI =100 1\$aWhite, R. E. =245 10$aPrinciples and Practice of Soil Science: the soil as a natural resource =260 \\$aOxford :$bBlackwell Scientific,$c1997 =852 \\$bFreeman Library$cReserve$h631.4 WHI