Cost-benefit analysis :  theory and practice 
Ajit K. Dasgupta and D.W. Pearce.  
 - London  Macmillan  c1972.  
 - 270 p.  il- 
 - Macmillan student editions. .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bem estar economica.<br/>Custo-beneficio.