00348nam a2200109Ia 4500008004100000082002400041100002500065245007500090250000900165260003600174300002800210260805b        |||||||| |||| 00| 0 eng d  a519.502461bB155.MT  aBailey, Norman T. J.  aThe mathematical theory of infectious diseases and its applicationsb/  a2nd.  aLondon:bCharles Griffin,c1975  axvi, 413p. Index, Bibl.