A commitment to the future :
Tolba, Mostafa Kamal.
A commitment to the future : sustainable development and environmental protection / Mostafa K. Tolba. - Nairobi : United Nations Environment Programme, 1992. - 111 p.
eng.
9280713620
Environmental policy.
Sustainability.
HC 79.E5
A commitment to the future : sustainable development and environmental protection / Mostafa K. Tolba. - Nairobi : United Nations Environment Programme, 1992. - 111 p.
eng.
9280713620
Environmental policy.
Sustainability.
HC 79.E5