Lua APA (7ú heag.)
Hall, E. W. (1960). Philosophical systems: A categorial analysis. University of Chicago.
Lua i Stíl Chicago (17ú heag.)
Hall, Everett W. Philosophical Systems: A Categorial Analysis. Chicago: University of Chicago, 1960.
Lua MLA (9ú heag.)
Hall, Everett W. Philosophical Systems: A Categorial Analysis. University of Chicago, 1960.
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