00445nam a2200157Ia 450000500170000000800410001703500090005804100080006708200110007510000220008624500370010826000460014530000140019150500390020565000430024420260808125303.0260808s9999||||xx |||||||||||||| ||und||  a1047  aENG  a576.31  aFrey-wyssling, A. 0aMacromolecules in cell structure  aCambridgebHarvard University Pressc1957  avii + 112  ageneral science, medicine, biology  aBiochemistrybMicrobiology -- Virology