Caplan, T. K. (2015). The distinction of human being. Vernon Press.
Lua i Stíl Chicago (17ú heag.)Caplan, Thomas Kruger. The Distinction of Human Being. Wilmington, Delaware: Vernon Press, 2015.
Lua MLA (9ú heag.)Caplan, Thomas Kruger. The Distinction of Human Being. Vernon Press, 2015.
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