APA-viite (7. p.)
ebrary, Inc, Corcoran, P. B., Wohlpart, J., & Hollingshead, B. P. (2008). A voice for Earth: American writers respond to the Earth Charter. University of Georgia Press.
Chicago-viite (17. p.)
ebrary, Inc, Peter Blaze Corcoran, James Wohlpart, ja Brandon P. Hollingshead. A Voice for Earth: American Writers Respond to the Earth Charter. Athens, Ga.: University of Georgia Press, 2008.
MLA-viite (9. p.)
ebrary, Inc, et al. A Voice for Earth: American Writers Respond to the Earth Charter. University of Georgia Press, 2008.
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