Leon, Clayton, <br/><br/>
Environmental studies:   an integrated approach / 
Leon Clayton. 
 - vi, 210 pages :  illustrations ;  27 cm. 
<br/><br/><label>ISBN: </label>9781641167567  RM672.00 (PPUKM) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology--Study and teaching.<br/>Environmental sciences--Study and teaching.<br/>Nature study.