Postel, Sandra. <br/><br/>
Altering the earth's chemistry :  assessing the risks / 
Sandra Postel. 
 - Washington, D.C. :  Worldwatch Institute,  c1986. 
 - 66 p. :  ill. 
 - Worldwatch paper ;  71 .
<br/><br/><label>ISBN: </label>0916468720 (pbk.) 
<br/><br/><label>LCCN: </label>88990975  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental chemistry.<br/>Environmental impact analysis.
<br/><br/><label>LC Class. No.: </label>TD193  / .P67 1986 
<br/><br/><label>Dewey Class. No.: </label>363.7�19