Wajnryb, R. Classroom Observation Tasks. Cambridge: Cambridge Univ. Press, 2000 145 p. 0-521-40722-2.
Wajnryb, R. Classroom Observation Tasks. Cambridge: Cambridge Univ. Press, 2000 145 p. 0-521-40722-2.
Wajnryb, R. (2000) Classroom Observation Tasks, Cambridge: Cambridge Univ. Press 145 p. 0-521-40722-2.
Wajnryb, R. (2000). Classroom Observation Tasks. A resource book for language teachers and trainers. Cambridge: Cambridge Univ. Press, 145 p.
Wajnryb R. Classroom Observation Tasks: A resource book for language teachers and trainers. Cambridge: Cambridge Univ. Press; 2000. p. 145 p. ISBN: 0-521-40722-2.