Johnson, Geoffrey,  1909- <br/><br/>
Profitable pig farming. 

 - 4th (revised) ed. 
 - Ipswich :  Farming Press ,  1973. 
 - 207 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>085236041X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Swine.
<br/><br/><label>Dewey Class. No.: </label>636.408 JOH