00346nam a2200133 a 450000500170000010000190001724500280003626000280006430000100009296400230010299700180012599900170014395200520016020251203090704.0  aBerg,Howard C.  aRandom walks in Biology  aU.P.bProvincetonc1983  a142p.  bENGLISHcdefg_  a15267 LIBSC C  c16449d16449  00104070aPUbPUd1998-08-24l0o p15267yBK