TY  - BOOK
AU  - Cunningham,William P.
AU  - Cunningham,Mary Ann
TI  - Principles of environmental science: inquiry and applications 
SN  - 0072452706 (pbk. : acidfree paper)
U1  - 363.7 23
PY  - 2002///
CY  - Boston
PB  - McGraw-Hill
KW  - Environmental sciences
N1  - Includes bibliographical references and index
ER  -