Gradstein, F.M. <br/><br/>
Quantitative stratigraphy 

 - Dordrecht  D.Reidel  1985 
 - xii, 598p, 22cm 
<br/><br/><label>ISBN: </label>9027721165 
<br/><br/><label>Dewey Class. No.: </label>551.701,  / D, gra