Campbell, R. <br/><br/>
Microbial ecology / 
by R. Campbell. 
 - New York :  John Wiley & Sons,  1977. 
 - vii, 148 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbial ecology.<br/>Biotic communities.