Enger, Eldon D, <br/><br/>
Field and laboratory exercises in environmental science / 
Eldon Enger and Bradley Smith ; with contributions by Heidi Marcum, David A. Aborn, W. Merle Alexander. 
 - 7th ed. 
 - 195 páginas :  ilustraciones 
<br/><br/> Previous ed. published as: Field & laboratory activities in environmental science, 1998. 
<br/><br/><label>ISBN: </label>0072909137 9780072909135 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ciencias ambientales.--Experimentos.<br/>Ciencias ambientales.--Trabajos de campo.
<br/><br/><label>Dewey Class. No.: </label>333.70724  / E57f 2000