Underahl, Norman R. <br/><br/>
Specific pathogen free swine  : development, application, consequences 

 - Lincoln :  Univ. of Nebraska,  1973 
 - 157 p. 
<br/><br/><label>LCCN: </label>44779 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ganado porcino--Mejoramiento.<br/>Ganado porcino--Resistencia a enfermedades.
<br/><br/><label>Dewey Class. No.: </label>636.4  / U5