Washington, DC : American Association for the Advancement of Science, 1983
Physical Description:
xxv, 539p. : ill.
Publication Year:
1983
ISBN:
0-87168-258-3
DOI:
Notes:
Based on a study conducted by the AAAS under the auspices of its Committee on Arid Lands and the US National Park Service and USAID. Includes bibliographic references