Worldwatch Institute. <br/><br/>
State of the World 1988 :  a world watch institute reports on progress towards a sustainable society. 

 - India :  Prentice-Hall,  1989. 
 - xvii, 237 p. ;  25 cm. 
<br/><br/>Includes index and bibliography. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prospecting--Geophysical methods.<br/>Geophysics--International cooperation.