TY  - BOOK
AU  - Wells,Edward
TI  - Lab manual for environmental science
SN  - 9780495560241
PY  - 2009///
CY  - Belmont, CA
PB  - Brooks/Cole Cengage Learning
KW  - Environmental protection
KW  - Environmental sciences
KW  - Human ecology
N1  - Includes bibliographical references
ER  -