Fry, Peter. <br/><br/>
Micro-organisms 

 - London :  Hodder and Stoughton,  1977 
 - 64 p.  : ilus. ; gráfs. 
 - Educational use of living organisms .
 - Educational use of living organisms .
<br/><br/><label>LCCN: </label>43486 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microorganismos.