Hall, Wilfrid John. <br/><br/>
Observations on the Coccidae of Egypt, 
by W.J. Hall ... 
 - Cairo,  Government Press,  1922. 
 - iv, 54 p., 1 l.  3 pl.  28 cm. 
<br/><br/><label>LCCN: </label>agr24000321  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scale insects.<br/>Insects--Egypt.
<br/><br/><label>LC Class. No.: </label>S341  / .A4 no. 22