Betten, Cornelius, 1877- <br/><br/>
The Francis Walker types of Trichoptera in the British Museum / 
re-described and figured by Cornelius Betten and Martin E. Mosely 
 - London :  British Museum,  1940 
 - ix, 248 p. :  ill. ;  26 cm. 
<br/><br/> At head of title: British Museum (Natural History) 
<br/><br/><label>Subjects--Personal Names: </label><br/>Walker, Francis, 1809-1874
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caddis--flies