Smith, N. K. (1966). The Philosophy of David Hume: A Critical Study of Its Origins and Central Doctrines (Reprint ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Smith, Norman Kemp. The Philosophy of David Hume: A Critical Study of Its Origins and Central Doctrines. Reprint ed. London: Macmillan, 1966.
Lua MLA (9ú heag.)Smith, Norman Kemp. The Philosophy of David Hume: A Critical Study of Its Origins and Central Doctrines. Reprint ed. Macmillan, 1966.
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