Sedergvist, Pirkko - Anni <br/><br/>
Speech disorders and socio - preferential dynamics. 

 - Helsinki  Suomalainen Tiedeakantemia  1970 
 - 122p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>P:10L:4
<br/><br/><label>Dewey Class. No.: </label>P:10L:4  / Ko