TY  - BOOK
AU  - Cunningham, William P. & Cunningham, Mary Ann
TI  - Principles of environmental science: Inquiry & applications
SN  - 978-007-126427-3
U1  - Cir. 301.31 C917 c2008 
PY  - 2008///
CY  - New York
PB  - McGraw-Hill Companies, Inc.
ER  -