Gray, Judith. <br/><br/>
An archival dilemma :   the densmore cylinder recording speeds. 

 - Washington-XXU :   American Folklife Center,   2001. 
 - p. 6-13 :   il. 
 - Trimestral 
 - Vol. XXIII, no. 3(Sum .2001) 
 - Folklife center news ;   Vol. XXIII, no. 3 .
<br/><br/><br/>Inglés.