Life cycle assessment :  what it is and how to do it / 
UNEP. 
 - France :  UNEP,  1996. 
 - 92 p. 
<br/><br/><label>ISBN: </label>92-807-1546-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic
<br/><br/><label>Subjects--Index Terms: </label>mechanical