Cita APA

Ruth Wajryb. (1992). Classroom Observation tasks: A resource book for language teachers and trainers. Cambridge, UK: Cambridge Univ. Press.

Citación estilo Chicago

Ruth Wajryb. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge, UK: Cambridge Univ. Press, 1992.

Cita MLA

Ruth Wajryb. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge, UK: Cambridge Univ. Press, 1992.