State of the environment the state of the world environment.

State of the environment the state of the world environment.

सभी संस्करण दिखाएं (2)
ग्रंथसूची विवरण
निगमित लेखक: United Nations Environmental Program
स्वरूप: पुस्तक
भाषा:English
प्रकाशित: Nairobi, Kenya UNEP c1986.
श्रृंखला:UNEP/GC 14/5-
विषय:
Environmental protection > Congresses.
Environmental policy > Congresses.
Health > Environmental aspects.