TY  - BOOK
AU  - Cunningham, William P
TI  - Environmental science: a global concern
SN  - 069713802X
AV  - GE 105 Cun 
PY  - 1990///
CY  - Dubque, IA
PB  - W C B
KW  - ENVIRONMENT
KW  - ENVIRONMENTAL SCIENCES
KW  - GEOGRAPHY--ENVIRONMENTAL ASPECTS
ER  -