Roberts, Roy W  1898- <br/><br/>
Modern farming 
[by] Roy W. Roberts [and others] 
 - Philadelphia,  Lippincott  [c1950] 
 - viii, 600 p.  illus., maps.  22 cm. 
<br/><br/>"References" at end of each chapter. 
<br/><br/><label>LCCN: </label>agr50000411  
<br/><br/><label>Nat. Bib. No.: </label>GB50-2686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--United States.
<br/><br/><label>LC Class. No.: </label>S495  / .R68 
<br/><br/><label>Dewey Class. No.: </label>630.973