John B. Free <br/><br/>
Insect pollination of crops 

 - London  Academic Press  1970 
 - 544p 
<br/><br/>John B. Free: Insect pollination of crops.  London.  Academic Press, 1970. 12-266650-X--(595.706FRE)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>12-266650-X 
<br/><br/><label>Dewey Class. No.: </label>595.706  / FRE