APA-viite (7. p.)
Pepper, D. (1993). Eco-socialism: From deep ecology to social justice. Routledge.
Chicago-viite (17. p.)
Pepper, David. Eco-socialism: From Deep Ecology to Social Justice. London ; New York: Routledge, 1993.
MLA-viite (9. p.)
Pepper, David. Eco-socialism: From Deep Ecology to Social Justice. Routledge, 1993.
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