Davidson, H. R.  <br/><br/>
The production and marketing of pigs / 
H. R. Davidson. 
 - 2nd ed. 
 - London :   Longmans,   c 1954. 
 - xvi, 537 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>341  341 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Swine -- Marketing.
<br/><br/><label>Dewey Class. No.: </label>636.4 / D281p