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Origins and development of agriculture in East Africa: the ethnosystems approach to the study of early food production in Kenya / edited by Richard E. Leakey and L. Jan Slikkerveer. -- Iowa, Iowa State University Research Foundation , c1991. -- xviii, 302 p. : ill., maps ; 28 cm. -- (Studies in technology and social change ; No.19 ; Technology and social change program, Iowa State University publication series). -- Includes bibliography: p. 255-299. -- (BA51188958) ; https://ci.nii.ac.jp/ncid/BA51188958
Author Heading(s): Leakey, Richard Erskine Frere ; Slikkerveer, L. J. (Leendert Jan)
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