00387nam a2200145Ia 4500008004100000082001700041100002800058245002700086260005000113300000800163650001800171650001800189653001000207700002400217170901s1990    xx            000 0 und d  a574.87bW46E  aWidnell, Christopher C. 0aEssential Cell Biology  aSan FranciscobWilliams and Wilkins Co.c1990  a396  aLife sciences  aPure Sciences  aCells  aPfenninger, Karl H.