Hayes, Samuel P <br/><br/>
Measuring the results of development projects :  a manual for the use of field workers / 
by Samuel P Hayes 
 - Paris :  UNESCO,  1959. 
 - 100p. :  diagrs., tables. 
<br/><br/>Bibliography: p. 98-100. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Community development
<br/><br/><label>Dewey Class. No.: </label>309.22072  / HAY.M