=LDR 00000nam a2200000ui 4500 =001 5124 =008 250530s1979\\\\xx\|||||||||||||||||eng\d =082 04$a631.47 7 =100 1\$aWestern, S. =245 10$aSoil survey contracts and quality control =260 \\$aOxford :$bClarendon Press,$c1979 =852 \\$bFreeman Library$cBooks$h631.47 7