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1The Nomadic alternative : modes and models of interaction in the African-Asian deserts and steppes /Published 1978“...GN 387 .N799...”
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2Published 1981“...GN 502 .I6121 1979...”
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3Published 1994“...GN 625 .A172 1994...”
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4Published 1994“...GC 1018 .I61...”
Conference Proceeding Book -
5Published 1997“...G 154.9 .E19...”
Book