Jonston, R.J. <br/><br/>
Environment problems :  nature ecologyand state / 
R. J. Johnston. 
 - London :  Belhaven Press,  1989. 
 - x, 211 p. ;  23 cm. 
<br/><br/>Includes indes and biblography. 
<br/><br/> open access. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Environment conservation.