Conningham,William P <br/><br/>
Environmental science  a global concern 

 - Boston  Brown Publishers  1990 
 - xxi,612p. 
<br/><br/><label>ISBN: </label>0697158942 
<br/><br/><label>Subjects--Index Terms: </label>science 
<br/><br/><label>Dewey Class. No.: </label>364.25  / CAN