Παραπομπή σε μορφή APA (7η εκδ.)

Wajnryb, R. (1992). Classroom observation tasks: A resource book for language teachers and trainers. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge: Cambridge University Press, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge University Press, 1992.