Showler, Karl. <br/><br/>
The observation hive 

 - Stenventon , England :  Bee Books,  1978 
 - 89 p.  : ilus. 
<br/><br/><label>LCCN: </label>56263 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colmenas.
<br/><br/><label>Dewey Class. No.: </label>638.14  / S4