Haarmann, H. The development of sign conceptions in the evolution of human cultures: Harald Haarmann. [Semiotik, 1].(1997).
Citazione stile Chigago Style (17a edizione)Haarmann, Harald. "The Development of Sign Conceptions in the Evolution of Human Cultures: Harald Haarmann." [Semiotik, 1].(1997) .
Citatione MLA (8a ed.)Haarmann, Harald. "The Development of Sign Conceptions in the Evolution of Human Cultures: Harald Haarmann." [Semiotik, 1].(1997), .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.