Rothenberg, D., & Næss, A. (1993). Is it painful to think?: Conversations with Arne Næss. University of Minnesota Press.
Chicago-viite (17. p.)Rothenberg, David, ja Arne Næss. Is It Painful to Think?: Conversations with Arne Næss. Minneapolis: University of Minnesota Press, 1993.
MLA-viite (9. p.)Rothenberg, David, ja Arne Næss. Is It Painful to Think?: Conversations with Arne Næss. University of Minnesota Press, 1993.
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