00390naa a2200133 a 450000100080000000500110000800800410001910000170006024500840007726000090016170000180017070000150018877300530020318384312010-01-10       1987    bl ---       0--  u    #d1 aRAVEN, P. H.  aAn introductory text with an emphasis on the evolution of biological diversity.  c19871 aJOHSON, G. B.1 aWILKES, G.  tConservation Biologygv. 1, n. 2, p. 1802, 1987.