World environment 1972-1992 : Two decades of challenge
Tolba, M.K.
World environment 1972-1992 : Two decades of challenge / Tolba, M.K. - London Chapman & Hall 1992 - xi,884 p
AIR POLLUTION
DEFORESTATION
OZONE LAYER DEPLETION
LAND DEGRADATION
CLIMATE CHANGE
World environment 1972-1992 : Two decades of challenge / Tolba, M.K. - London Chapman & Hall 1992 - xi,884 p
AIR POLLUTION
DEFORESTATION
OZONE LAYER DEPLETION
LAND DEGRADATION
CLIMATE CHANGE
