TY  - BOOK
AU  - Enger,Eldon D.
AU  - Smith,Bradley Fraser
TI  - Environmental science: a study of interrelationships 
SN  - 0073050288 (pbk.)
PY  - 2008///
CY  - Boston
PB  - McGraw-Hill
KW  - Environmental sciences
KW  - Textbooks
N1  - Includes index
ER  -