Keinhorst, J. (2003). Environmental-policy co-operation with central and eastern Europe.
Čikaški stil citiranja (17. izdanje)Keinhorst, Jurgen. Environmental-policy Co-operation with Central and Eastern Europe. 2003.
MLA način citiranja (9. izdanje)Keinhorst, Jurgen. Environmental-policy Co-operation with Central and Eastern Europe. 2003.
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