Wajnryb, Ruth <br/><br/>
Classroom observation tasks : a resource book for language teachers and trainers 

 - United Kingdom :  Cambridge,  1992. 
 - viii,145p.;  23cm 
<br/><br/><label>ISBN: </label>0521407222 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Language
<br/><br/><label>Dewey Class. No.: </label>407  / WAJ