Environment, natural systems, and development :  an economic valuation guide / 
Maynard M. Hufschmidt ... [et al.] 
 - Baltimore, London :  The John Hopkins University Press,  c1983. 
 - xxii, 338 p. 
<br/><br/>23 cm. 
<br/><br/><label>ISBN: </label>0801829313 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--Cost effectiveness.<br/>Economic development projects--Cost effectiveness.
<br/><br/><label>LC Class. No.: </label>HC79  / .E5E58