TY  - BOOK
AU  - Tolba,Mostafa Kamal
AU  - 
ED  - United Nations Environment Programme.
TI  - The world environement 1972-1992: two decades of challenge
SN  - 0412470004 (pbk. )
AV  - HC79.E5 W67 1992
PY  - 1992///
CY  - London, New York
PB  - Published by Chapman & Hall
KW  - Environmental policy
KW  - Environmental protection
N1  - Includes bibliographical references and index
ER  -