Pagden, Hugh Trelawny <br/><br/>
Two citrus fruit borers / 
 The'green scale' of coffee coccus (Lecanium) viridis Green 
by H.T. Pagden 
 - Kuala Lumpur :  Department of Agriculture,  1931 
 - 29 p. :  ill. ;  27 cm. 
 - Scientific series ;  no.7 .
 - Scientific series (Department of Agriculture) ;  no.7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Citrus fruits--Diseases and pests<br/>Coffee--Diseases and pest