Antibiotics in animal feed  Chemical & engineering  news/ 
American Chemical society 
 - U.S. A.  A C S  1985 
 - 52P  Hbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anmals feeds--Anttibiotics--Feeds
<br/><br/><label>LC Class. No.: </label>SF98. A5 1985