Cost-benefit analysis :  selected readings / 
edited by Richard Layard. 
 - Harmondsworth :  Penguin,  1972. 
 - 496 p. : 
<br/><br/><label>ISBN: </label>0140806458 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cost effectiveness.
<br/><br/><label>Dewey Class. No.: </label>339.41  / Co