Wool research, Vol. 6 :  Drawing and spinning / 
 Drawing and spinning. 
Wool Industries Research Association. 
 - Leeds :  Wool Industries Research Association,  1949. 
 - vii, 255 p. :  ill. ;  25 cm. 
 - Wool industries. .
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references.