Russell, Robert M. <br/><br/>
Materials / 
Robert M. Russell 
 - London :  Collins,  1970 
 - 79 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>OPE0001107(Local) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Materials--Problems, exercises, etc