00305nam a2200109 a 4500008004100000050001700041100001400058245005800072246004700130260000900177350000900186120416s1991    xx |||||||||||||| ||    u  aSB 123.3 Cro  aAttere, F10aCrop genetic resources of Africacedited by F. Attere  aproceedings of an international conference  c1991  a0.00