Cita APA (7a ed.)

Wajnryb, R. (1998). Classroom observation tasks: A resource book for language teachers and trainers. Cambridge University.

Cita Chicago Style (17a ed.)

Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge: Cambridge University, 1998.

Cita MLA (9a ed.)

Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge University, 1998.