Shepherd, Walter <br/><br/>
Flint :  its origin, properties and uses / 
Walter Shepherd 
 - London :  Faber and Faber,  1972 
 - 255 p. :  ill., maps ;  23 cm. 
<br/><br/>Bibliography : p. 235-244 
<br/><br/><label>ISBN: </label>0571099262 
<br/><br/><label>LCCN: </label>72-191742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Flint