Irvin,  George <br/><br/>
Modern cost-benefit methods:An Introduction to  Financial,Economic and Social Appraisal of Development Projects 

 - London:  Macmillan  1978 
 - xiii,  257p  ill.  ;23cm 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0333232089 
<br/><br/><label>Dewey Class. No.: </label>658.1554