Hudson F.S. <br/><br/>
North America / 
F.S. Hudson 
 - 3rd. ed. 
 - London :  Macdonald & Evans,  1974 
 - 462 p. :  ill. ;  22 cm. 
 - The new certificate geography series advanced level .
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0712114076 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--North America