TY  - BOOK
AU  - Hens,Luc
AU  - Nath,Bhaskardev.
TI  - Environmental management in Practice: Instroments for environmental management 
SN  - 0415149061
AV  - GE300.E594 1998 
PY  - 1998///
CY  - New York
PB  - Routledge
KW  - Environmental management
N1  - Includes bibliographical references
ER  -