|
1
|
|
|
|
GB652
.I4
|
Impact of environmental and climatic change on global and regional hydrology
|
Virginia : Water Environment Federation , 1993
|
|
|
29691
|
|
2
|
|
|
|
TD194.6
.E5
|
Environmental impact of industrial activities
|
Virginia : Water Environment Federation , 1993
|
|
|
30013
|
|
3
|
|
|
|
TD194.6
.E5
|
Environmental impact of agricultural activities/edited by Yoram Eckstein, Alexander Zaporozec
|
Virginia : Water Environment Federation , 1993
|
|
|
81799
|