[Washington, D.C.?] : The Program, [1995]
Washington, D.C. : National Academy Press, 1986.
Federal News Service - Congressional Hearing Prepared Testimonies, 1998, p.1
MENA Report, 2017
American documentation, 1963-01, Vol.14 (1), p.78-81
Washington, DC : United States National Committee for the Man and the Biosphere Program, -1997.
Washington, DC : United States National Committee for the Man and the Biosphere Program, -1997.
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