Gaya APA
Wajnryb, Ruth. (1992).
Classroom observation tasks: a resource book for language teachers and trainers .
Cambridge:
Cambridge University Press.
Gaya Chicago
Wajnryb, Ruth.
Classroom observation tasks: a resource book for language teachers and trainers.
Cambridge:
Cambridge University Press,
1992.
Text.
Gaya MLA
Wajnryb, Ruth.
Classroom observation tasks: a resource book for language teachers and trainers.
Cambridge:
Cambridge University Press,
1992.
Text.
Gaya Turabian
Wajnryb, Ruth.
Classroom observation tasks: a resource book for language teachers and trainers.
Cambridge:
Cambridge University Press,
1992.
Print.