Jeffreys, Harold, Sir, 1891- <br/><br/>
The Earth :  its origin history and physical constitution / 
Harold Jeffreys 
 - 5th ed. 
 - Cambridge :  Cambridge University Press,  1970 
 - 523 p. ;  25 cm. 
<br/><br/>p. 497-520 
<br/><br/><label>ISBN: </label>0521072786 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth