LEGATES,J.E. and WARWICK,E.J. <br/><br/>
BREEDING AND IMPROVEMENT OF FARM ANIMALS 

 - 8th ed. 
 - NEW YORK  Mc Graw -Hill  1990 
 - 342p. 
<br/><br/><label>ISBN: </label>0 07 068376 X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>livestock---breeding