Beck, Stanley D <br/><br/>
Insect photoperiodism 

 - 
 - Academic  Press inc, Newyork  1968 
 - 288 
 - .
<br/><br/>  
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects-Photochemistry, Bioluminiscence
<br/><br/><label>Dewey Class. No.: </label>595.7072435  BEC-I