Gerhard, William Josiah,  1873- <br/><br/>
The periodical cicada / 
by Wm. J. Gerhard. 
 - Chicago :  Field museum of natural history,  1923. 
 - 14 p. :  ill. (incl. maps) pl.  22 cm. 
 - [Field museum of natural history. Zoology leaflet 4] .
<br/><br/> Cover-title.  "Some important papers on the periodical cicada" : p. 14. 
<br/><br/><label>LCCN: </label>cd 30000022  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodical cicada.
<br/><br/><label>LC Class. No.: </label>QL1  / .F5 no.4