Vernant, D. Sign conceptions in logic from the 19th century to the present: Denis Vernant. [Semiotik, 2].(1998).
Citazione stile Chigago Style (17a edizione)Vernant, Denis. "Sign Conceptions in Logic from the 19th Century to the Present: Denis Vernant." [Semiotik, 2].(1998) .
Citatione MLA (8a ed.)Vernant, Denis. "Sign Conceptions in Logic from the 19th Century to the Present: Denis Vernant." [Semiotik, 2].(1998), .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.