000 002980000a22001090004500
245 _aDesertification : how people make deserts, how people can stop and why they don't
100 _aGrainger, Alan
260 _aLondon
_bEarthscan
_c1982
080 _a551.45:301
_bG7
041 _aEN
942 _cBK
999 _c116688
_d116688