Doyle, Peter. <br/><br/>
The key to earth history :  an introduction to stratigraphy / 
Peter Doyle, Matthew R. Bennett (and) Alistair N. Baxter. 
 - Chichester :  John Wiley & Sons,  1994. 
 - 231 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0471948454  RM55.43 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology stratigraphic.