Agriculture people and the land  teacher's guide 
Prepared by social science staff of the educational research council of America 
 - 2nd 
 - Boston  Allyn and Bacon  1975 
 -  iii,249p 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture-Research
<br/><br/><label>Dewey Class. No.: </label>630.7  / AGR