Proceedings 

 - St. Joseph, Mich. :  American Society of Agricultural Engineers,  1974 
 - 429 p.  : ilus. ; gráfs 
 - Special publication  ; SP-0174 .
 - Special publication  ; SP-0174 .
<br/><br/><label>LCCN: </label>25990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ganado--Efecto del medio ambiente.
<br/><br/><label>Dewey Class. No.: </label>636.08  / I59 1974