The Phanerozoic time-scale :  a supplement. 

 - London :  Geological Society of London,  1971. 
 - 356 p. ;  28 cm. 
 - Special publication ;  no.5 .
<br/><br/>Part 1: Supplementary papers and items, edited by W. H. Harland & E. H. Francis - Part 2: Towards a pleistocene time-scale, edited by P. Evans. 
<br/><br/><label>ISBN: </label>X920046377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time.<br/>Radioactive dating.