Round F E ;  Crawford R M  &  Mann D G <br/><br/>
Diatoms : Biology and Morphology of the Genera .-9780521714693 

 -  Cambridge Univ Press, Cambridge  2007 
<br/><br/><label>ISBN: </label>9780521714693 
<br/><br/><label>Dewey Class. No.: </label>I22-9557:12/P/B27542