Butts, W. L. and R. H. Davidson <br/><br/>
The toxity of five organic insecticides to resistant and non-Resistant Strains of Blattella germanica 

 - 
 - Ohio-USA  The Ohio State University,Columbrus  1955 
 -   
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Insecticidas--Blatella germanica--Entomologia Agricola--Zoologia Agricola--<br/>Zoologia