=LDR 22 4500 =001 73 =082 04$a960 DE =100 1\$aDe Guingand, Francis =245 10$aAfrica south of the Sahara: an assessment of human and material resources =260 \\$aAucklandAuckland :$bOxford University Press,$c1951 =650 \0$aBooks =852 \\$bFreeman Library$h960 DE