Erdtman, Gunnar. <br/><br/>
Handbook of palynology ; morphology, taxonomy, ecology... 

 - New York :  Hafner,  1969 
 - 486 p.  : ilus. 
<br/><br/><label>LCCN: </label>41641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polen.
<br/><br/><label>Dewey Class. No.: </label>581.3325  / E7