003570000a22001090004500060000800000082001600008100001600024245009000040260004700130300000700177650006300184  a100  a631.4 7 JAC  aJacks, G.V.  aImperial bureau of soil science : technical communication No.43 : land classification  aEngland, Imperial bureau of soical science  a90  aLand classification - land use planning/ land in ventoreis