Pray, Leon Luther,  1882- <br/><br/>
Common mushrooms, 
Leon L. Pray. 
 - Chicago,  Field museum of natural history,  1936. 
 - 68 p., 1 l.,  illus.  22 cm. 
 - Field museum of natural history.  Botany leaflet 18 .
<br/><br/> Cover-title. 
<br/><br/><label>LCCN: </label>s  37000011  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mushrooms.
<br/><br/><label>LC Class. No.: </label>QK617  / .P7