The study of livestock farming systems in a research framwork :  proceedings of the second International Symposium on Livestock Farming Systems, Saragossa, Spain, September 11-12, 1992 / 

 - Wageningen, Netherlands :  PUDOC,  1994 
 - 449 p. :  ill. ;  25 cm 
 - EAAP publication ; .
<br/><br/><label>ISBN: </label>907413419X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Livestock<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>656 PUD 1994 A051 Or.