TY  - BOOK
AU  - Tolba, Mostafa Kamal
TI  - Sustainable development: constraints and opportunities
SN  - 0-408-00877-6
U1  - 333.72 21st ed.
PY  - 1987///
CY  - London
PB  - Butterworths
KW  - Environmental policies
KW  - Environmental protection
KW  - Human ecology
KW  - United Nations Environment Programme
N1  - Index: pp 216-21
ER  -