Agriculture and the environment :  the 1991 yearbook of agriculture 

 - [Place of publication not identified] :  [Publisher not identified],  [Date of publication not identified] 
 - xiv, 325 pages :  illustrations ;  22 cm 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture --Environmental aspects
<br/><br/><label>LC Class. No.: </label>S589.75 A37