=LDR 22 4500 =001 2113 =082 04$a631.4 PIT =100 1\$aPitty, Alistair F. =245 10$aGeography and soil properties =260 \\$aLondon :$bMethuen,$c1979 =650 \0$aReserve =852 \\$bFreeman Library$h631.4 PIT