Cameron, I. B. <br/><br/>
Sources of aggregate in Northern Ireland / 
I. B. Cameron / E. N. Calvert-Harrison, second edition. 
 - London:   Her Majesty's Stationery Office,   1977.  
 - vi, 21 p. :  maps ;  30 cm. 
 - Institute of Geological Sciences : Natural Environment Research Council. 77/1 .
<br/><br/>Includes bibliographical references (p. 21) and index (p. 16-19). 
<br/><br/><label>ISBN: </label>0118812793 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sources<br/>Sources--Northern Ireland
<br/><br/><label>Dewey Class. No.: </label>628.114161