Crompton, Clifford W. <br/><br/>
Pollen grains of canadian honey plants 

 - Ottawa :  Canada Communication Group,  1993 
 - 228 p.  : ilus. 
 - Publication 1892/E .
 - Publication 1892/E .
<br/><br/><label>LCCN: </label>58908 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas melíferas.<br/>Polen.
<br/><br/><label>Dewey Class. No.: </label>581.1662  / C76