00566nam a2200157Ia 450000500170000000800410001703500090005804100080006708200110007510000370008624501360012326000430025930000120030250500510031465000430036520260808125320.0260808s9999||||xx |||||||||||||| ||und||  a1738  aENG  a576.85  aSociety for General Microbiology 0aSymbotic associationsbthirteenth symposium of the society for general microbiology held at the royal institution London april 1963  aBaltimorebUniversity Park Pressc1963  ax + 356  aSymbiosis, Ecology, Microbiology, Parasitology  aMicrobiologybMicrobiology -- Virology