Zaragoza Ramírez, José Luis <br/><br/>
An evaluation of stocker production systems based on Marshall ryegrass  / 
Jose L.Zaragoza Ramirez 
 - Auburn, Alabama  :  The author,  2005 
 - 125 h. 
<br/><br/>Tesis (Degree of Doctor of Philosophy) -- University of Auburn 
<br/><br/><label>LCCN: </label>168571