вятютнева:Vyatyutneva <br/><br/>
Проблемы отбора учебного материала:Problemy otbora uchebnogo materiala/Problems of selection of educational material 

 - Moscow  1971 
 - 140p. 
<br/><br/><label>Dewey Class. No.: </label>491.78824  / VYA/P