Hayes, Samuel P. (Samuel Perkins), 1910-  Hayes, Samuel P. (Samuel Perkins), 1910- <br/><br/>
Measuring the results of development projects :  a manual for the use of field workers / 
prepared for UNESCO. 
 - [Paris] :  UNESCO,  [1959] 
 - Monographs in the applied social sciences .
<br/><br/>Bibliography: p. 98-100. 
<br/><br/><label>LCCN: </label>59065484 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Community development -- Research.--Community development -- Research.
<br/><br/><label>LC Class. No.: </label>HN29  / .H37 
<br/><br/><label>Dewey Class. No.: </label>309.22072