Wajnryb, R. (1992). Classroom observation tasks: Resource book for language teachers and trainers. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Wajnryb, Ruth. Classroom Observation Tasks: Resource Book for Language Teachers and Trainers. New York: Cambridge University Press, 1992.
Lua MLA (9ú heag.)Wajnryb, Ruth. Classroom Observation Tasks: Resource Book for Language Teachers and Trainers. Cambridge University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.