Allen, John L. <br/><br/>
Environment 98/99 / 
Allen, John L. 
 - United States of America:  Dushkin/McGraw-Hill,  1998. 
 - x, 229 p.;  ill. 
<br/><br/><label>ISBN: </label>0-697-41790-5 
<br/><br/><label>Dewey Class. No.: </label>301.31 A1 1999