Brown, S. F. Sign conceptions in logic in the Latin Middle Ages: Stephen F. Brown. [Semiotik, 1].(1997).
Cita Chicago (17th ed.)Brown, Stephen F. "Sign Conceptions in Logic in the Latin Middle Ages: Stephen F. Brown." [Semiotik, 1].(1997) .
Cita MLA (8th ed.)Brown, Stephen F. "Sign Conceptions in Logic in the Latin Middle Ages: Stephen F. Brown." [Semiotik, 1].(1997), .
Atenció: Aquestes cites poden no estar 100% correctes.