Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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