APA-viite (7. p.)
Żylicz, T. (2015). The economics of international environmental cooperation. PL Academic Research.
Chicago-viite (17. p.)
Żylicz, Tomasz. The Economics of International Environmental Cooperation. Frankfurt am Main, [Germany]: PL Academic Research, 2015.
MLA-viite (9. p.)
Żylicz, Tomasz. The Economics of International Environmental Cooperation. PL Academic Research, 2015.
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