Cutting energy costs;   The yearbook of agriculture, 1980 

 - Washington, D.C.:   The United States Department of Agriculture,   1980 
 - xiv, 397p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Universal Decimal Class. No.: </label>R 63(058)(73)  / M0