Pralle, S. B. (2006). Branching out, digging in: Environmental advocacy and agenda setting. Georgetown University Press.
Chicago-viite (17. p.)Pralle, Sarah Beth. Branching Out, Digging in: Environmental Advocacy and Agenda Setting. Washington, D.C.: Georgetown University Press, 2006.
MLA-viite (9. p.)Pralle, Sarah Beth. Branching Out, Digging in: Environmental Advocacy and Agenda Setting. Georgetown University Press, 2006.
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