Challinor, John <br/><br/>
Geology explained in North Wales / 
by John Challinor and Denis E. B. Bates. With a chapter by E. G. Bowen 
 - Newton Abbot, England :  David & Charles,  1973 
 - 214 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography: p. 197-207 
<br/><br/><label>ISBN: </label>0715359428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Wales, North