U.S.D.A. <br/><br/>
Agricultural Economics Research. Vol 28(1976) - 39 No 1(1987) 

 - Washington  U.S.D.A.  1976 
 - 435p 
<br/><br/>U.S.D.A.: Agricultural Economics Research. Vol 28(1976) - 39 No 1(1987).  Washington.  U.S.D.A., 1976.--(338.105U.S)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>338.105  / AER