Krebs, Alfred H. <br/><br/>
Agriculture in our lives :  an introduction to agricultural business and natural resources / 
by Alfred H. Krebs. 
 - 4th ed. 
 - Danville, Ill. :  Interstate Printers & Publishers,  c1978. 
 - xii, 775 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.<br/>Agriculture--United States.