=LDR 22 4500 =001 5115 =082 04$a631.4 CRU =100 1\$aCruickshank, James G. =245 10$aSoil geography =260 \\$aNewton Abbot :$bDavid and Charles,$c1972 =650 \0$aBooks =852 \\$bFreeman Library$h631.4 CRU