Witkowski, A., M. Bak and B. Wawryzyniak <br/><br/>
Siliceous Microfossils (Diatoms - Bacillariophyceae) from Neogene Deposits of the Valdarmo Area (Tuscany, Italy ) - Preliminary results, Vol.5 

 -  H J Gregor, Germany, Munchen  2001 
<br/><br/><label>Dewey Class. No.: </label>I22-9557.52   P01.5/B28551