00494nam a2200157Ia 450000500170000000800410001703500090005804100080006708200120007510000230008724500490011026000430015930000130020250500800021565000410029520260808125310.0260808s9999||||xx |||||||||||||| ||und||  a1299  aENG  a576.097  aBurnet, Macfarlane 0aClonal selection theory of acquired immunity  aBaltimorebUniversity Park Pressc1959  aix + 209  aClonal selection, Immunology, Acquired immunity, Immune theory, Lymphocytes  aImmunologybMicrobiology -- Virology