Collison, Clarence H. <br/><br/>
Fundamentals of beekeeping 

 - University Park, Penn :  Pennsylvania State University. College of Agriculture,  (198?) 
 - 68 p.  : ilus. 
<br/><br/><label>LCCN: </label>22439 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Apicultura.