Environmental surveys
The world environment 1972 - 1992 : two decades of challenge
1992
Tolba, Mostafa Kamal |
El-Kholy, Osama A. |
Holdgate, Martin W. |
Man's role in changing the face of the Earth
1956
Thomas, William Leroy |
Our environment Mauritius
1975
Owadally, Wahab |
Michel, Claude |