00441cam a2200157 i 450000500170000000800410001702000150005802000180007305000260009108200110011710000210012824500560014926000310020530000250023670000220026120260327095139.0760913s1977    nyua     b    001 0 eng    a0471200638  a978047120063500aDT12.2.B44 1977b.B4400a960/.31 aBest, Alan C. G.10aAfrican survey /cAlan C. G. Best, Harm J. de Blij.  aNew York :bWiley,cc1977.  axi, 626 p. :bill. ;1 aDe Blij, Harm J.,