Roberts, Gwyneth Tyson. <br/><br/>
The language of the blue books. 

 - Cardiff :  University of Wales Press,  1998. 
 - viii, 260p. 
<br/><br/><label>ISBN: </label>0708314236 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Welsh language--History--19th century.<br/>Education--History--Wales--19th century.<br/>Government publications--Great Britain.