Ruiz, Manuel E. <br/><br/>
Ruminant nutrition research :  methodological guidelines 
/ ed. by Manuel E. Ruiz and Susan E. Ruíz 
 - San José, C.R :  Inter-American Institute for Cooperation on Agriculture,  1992. 
 - 350 p. 
 - Research and development collection  ; 23 .
 - IICA .
 - Research and development collection  ; 23 .
<br/><br/><label>ISBN: </label>929039206 1 
<br/><br/><label>LCCN: </label>77398 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forrajes--Investigación.<br/>Rumiantes--Nutrición.
<br/><br/><label>Dewey Class. No.: </label>636.20982  / R8