Educational approaches to rural wellfare: papers submitted to the technical meeting on agricultural extension, Turrialla, Costa Rica August 23 to September 2, 1949 
by Food qnd Agriculture Organisation of the United Nations and Inter-American Institute of Agricultural Sciences 
 -  Food and Agriculture Organisation of the United Nations and Inter-American Institute of Agricultural Sciences  1949 
 - 51+p 
<br/><br/> bound with I53108 
<br/><br/><label>Dewey Class. No.: </label>B136 F739