APA (7th ed.) Citation

Van Lier, L. (2004). The ecology and semiotics of language learning: A sociocultural perspective. Kluwer Academic.

Chicago Style (17th ed.) Citation

Van Lier, Leo. The Ecology and Semiotics of Language Learning: A Sociocultural Perspective. Boston ; Dordrecht: Kluwer Academic, 2004.

MLA (9th ed.) Citation

Van Lier, Leo. The Ecology and Semiotics of Language Learning: A Sociocultural Perspective. Kluwer Academic, 2004.