A commitment to the future :
Tolba, Mostafa Kamal.
A commitment to the future : sustainable development and environmental protection / Mostafa Kamal Tolba. - [S.l.] : United Nations Environment Programme, 1992. - 111 p.
Unknown Binding.
9280713620 9789280713626
A commitment to the future : sustainable development and environmental protection / Mostafa Kamal Tolba. - [S.l.] : United Nations Environment Programme, 1992. - 111 p.
Unknown Binding.
9280713620 9789280713626