ASHWORTH JH <br/><br/>
THE QUARTERLY JOURNAL OF MICHROSCOAL SCIENCE 

 - 150P. :   ill ; 23 CM  
<br/><br/><label>Subjects--Topical Terms: </label><br/>2 C 15<br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>2  / C15