TY  - BOOK
AU  -  Tolba,Mostafa Kamal
AU  -  Lamb,Robert
AU  -  Allen,Patrick
ED  -  United Nations Environment Programme.
TI  -  Earth matters / 
SN  -  9280710745
PY  - 1983///
CY  -  Nairobi : 
PB  -  United Nations Environment Programme, 
KW  -  Environmental protection
N1  -  Includes index
ER  -