=LDR 22 4500 =001 5331 =082 04$a333.760942 BAK =100 1\$aBaker, Alan R. H. =245 10$aStudies of field systems in the British Isles =260 \\$aLondon :$bCambridge University Press,$c1973 =650 \0$aBooks =852 \\$bGeography Basement$h333.760942 BAK