Gregory, P.H. <br/><br/>
Microbiology of the atmosphere 

 - 2nd ed. 
 - Bucks  Leonard hill books  1973 
 - xxi, 377 p. 
<br/><br/><label>ISBN: </label>249441101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbiology
<br/><br/><label>Dewey Class. No.: </label>576  / GRE