Schenkel, W. (1998). From clean air to climate policy in the Netherlands and Switzerland--same problems, different strategies? Peter Lang.
Chicago-viite (17. p.)Schenkel, Walter. From Clean Air to Climate Policy in the Netherlands and Switzerland--same Problems, Different Strategies? Bern ; New York: Peter Lang, 1998.
MLA-viite (8. p.)Schenkel, Walter. From Clean Air to Climate Policy in the Netherlands and Switzerland--same Problems, Different Strategies? Peter Lang, 1998.
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