TY  - BOOK
AU  - Chiras, D.Daniel
TI  - Environmental science: Asystems approach to sustainable development
SN  - 534538746
AV  - GE140.C48 1998 
PY  - 1998///
CY  - Toronto
PB  - Wardsworth publishing company
KW  - environment
N1  - include index
ER  -