Thackray, John. <br/><br/>
The age of the earth / 
[John Thackray]. 
 - London :  HMSO for the Institute of Geological Sciences,  1980. 
 - 34 p. :  ill. (some col.), col. maps, ports. (some col.) ;  20 x 21 cm. 
<br/><br/> Cover title. 
<br/><br/><label>ISBN: </label>0118840770 (pbk) 9780118840774 (pbk)  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time.