Handbook of official hay and straw standards. 

 - Revised effective July 1, 1949. 
 - Washington :  U.S. Govt. Print. Off.,  1950. 
 - ii, 55 p. ;  15 cm. 
<br/><br/><label>LCCN: </label>agr50000642  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hay.<br/>Straw.
<br/><br/><label>LC Class. No.: </label>HD9049.H3  / U52 1949c