York, Derek <br/><br/>
The earth's age and geochronology / 
Derek York and Ronald McCunn Farquhar 
 - Oxford :  Pergamon Press,  c1972 
 - viii, 178 p. :  ill. ;  21 cm. 
 - The Commonwealth and international library. Geophysics division .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 50.00(pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time
<br/><br/><label>Dewey Class. No.: </label>551.7