Cunningham, William P., <br/><br/>
Environmental science :  a global concern / 
William P. Cunningham, Mary Ann Cunningham. 
 - Fifteenth edition. International student edition. 
 - 1 recurso en línea : 
<br/><br/><label>ISBN: </label>9781260590562 1260590569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.<br/>Environmental sciences