00385nam a2200121Ia 4500008004100000082001900041100001800060245006300078260004200141300001500183490003600198500002900234251030b        |||||||| |||| 00| 0 eng d  a511.6bP429.CM  aPercus, J. K.  aCombinatorial methods in developmental biology, 1975-76b/  aNew York:bNew York University,c1977  aiii, 202p.  aCourant Institute lecture notes  a"Notes by O. E. Percus".