G. Erdtman <br/><br/>
Pollen morphology and plant taxonomy / 
G. Erdtman 
 -  Hafner Publishing Company New York 
 - 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>582.0463  / ERDP