Guide to practical project appraise : social benefit - cost analysis in development countries 

 - New York   United Nation      
 - 121p.  cm. 
 - Project fromulation and evaluation series, no. 3 .
<br/><br/><label>Standard No.: </label>248908 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Dewey Class. No.: </label>X:89A, L8(906)