000 006580000a22002170004500
001 1219
090 _a1219
100 _a pory5003
102 _aNL
200 _aRain, snow, and lake water chemistry on and near the Precambian shield of western Canada
_fS.R.Shewchuk
300 _ain:"Water, Air, and Soil Pollution", Dordrecht, 30 (1/2) Sept. 1986, p.115-123
317 _aOrigem: INMG
330 _aSumário (Met.Geo.Abst.1987,p.1511)
606 _aCHUVAS ACIDAS
606 _aNEVES ACIDAS
606 _aCANADA
675 _a551.577.13
675 _a551.578.41
675 _a556.551.4(71)
_vmed
_zfre
700 1 _aShewchuk
_bS.R.
700 _4070