Παραπομπή APA

Williams,, . M., & Burden,, R. L. (1997). Psychology for language teachers: A social constructivist approach. Cambridge University Press.

Παραπομπή Chicago Style

Williams,, Marion, και Robert L. Burden. Psychology for Language Teachers: A Social Constructivist Approach. Cambridge: Cambridge University Press, 1997.

Παραπομπή MLA

Williams,, Marion, και Robert L. Burden. Psychology for Language Teachers: A Social Constructivist Approach. Cambridge University Press, 1997.