York, Derek <br/><br/>
The earth's age and geochronology 

 - Oxford  Pergamon press   1972 
 - 178p.,  22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineral <br/>Rock <br/>Earth <br/>Geology <br/>Mineralogy
<br/><br/><label>Universal Decimal Class. No.: </label>551.7  / YOR