Sugden, Robert. <br/><br/>
The Principles of practical cost-benefit analysis / 
Robert Sugden and Alan Williams. 
 - 1st  ed. 
 - Oxford :  O. U. P.,  1978. 
 - xii, 275  p. 
<br/><br/><label>ISBN: </label>0198770413 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cost-effectiveness.