000 00304nam a2200109 a 4500
008 121119s1975 xx || ||||||| |d
245 0 0 _aUnderstanding climatic change :
_ba program for action
260 _c1975
260 _bNational Academy of Sciences (USA)
650 7 _aCLIMATE CHANGE
_2unbist
942 _cBK
999 _c588
_d588