Laing J. A. <br/><br/>
Trichomonas foetus infection of cattle 
Laing J. A. 
 - Rome  Food and Agriculture Organization         1956 
 - vii, 39p. Bibliography p.37-39  cm. 
 - Agricultural Studies. 33. .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>KZ311,185:32:2:4, J6/UN