Wehr, Everett Elmer,  1895- <br/><br/>
Controlling gapeworms in poultry ... 

 - [Washington,  U.S. Govt. Print. Off.,  1941] 
 - 1 p. l., 6 p.  illus.  23 cm. 
 - U.S. Dept. of Agriculture. Leaflet,  no. 207 .
 - Leaflet (United States. Department of Agriculture) ;  no. 207. .
<br/><br/> "By Everett E. Wehr."--p. 1.  Contribution from Bureau of Animal Industry. 
<br/><br/><label>LCCN: </label>agr41000018  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Poultry--Parasites.<br/>Syngamus trachealis.
<br/><br/><label>LC Class. No.: </label>SF995  / .W35 
<br/><br/><label>Dewey Class. No.: </label>636.50896965  [619.5]