000 00267 a2200121 4500
080 _a551.244.2(063)
_bT 646 P
245 1 _aProceedings
_bVol. 1
260 _bIASH/AIHS-UNESCO
_c1969
650 _aLand Subsedence
100 _a
_d
300 _a324 p.
901 _a108957
999 _c31143
_d31143