Wersch, J. V. (1989). Semiotic mechanisms in joint cognitive activity.
Chicago Style (17th ed.) CitationWersch, James V. Semiotic Mechanisms in Joint Cognitive Activity. 1989.
MLA (9th ed.) CitationWersch, James V. Semiotic Mechanisms in Joint Cognitive Activity. 1989.
Warning: These citations may not always be 100% accurate.
