APA-viite (7. p.)
Gahrton, P., & Lucas, C. (2015). Green parties, green future: From local groups to the international stage. Pluto Press.
Chicago-viite (17. p.)
Gahrton, Per, ja Caroline Lucas. Green Parties, Green Future: From Local Groups to the International Stage. London: Pluto Press, 2015.
MLA-viite (9. p.)
Gahrton, Per, ja Caroline Lucas. Green Parties, Green Future: From Local Groups to the International Stage. Pluto Press, 2015.
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