TY  - BOOK
AU  - Tolba,Mostafa Kamal
AU  - 
AU  - 
AU  - 
AU  - 
AU  - 
ED  - United Nations Environment Programme 
ED  - United Nations Environment Programme.
TI  - The World environment 1972-1992: two decades of challenge 
SN  - 0412470004 (pbk.)
AV  - HC 79.E5 .U5816 1992
PY  - 1992///
CY  - London, United Kingdom
PB  - Chapman & Hall
KW  - LCSH
KW  - Environmental policy
KW  - Environmental protection
KW  - Environmental management
N1  - Includes bibliographical references and index
ER  -