000 00255 a2200121 4500
020 _a0854031383
041 _aEng
082 _bINF
245 _aInfluenza
260 _c1980
_aLondon
_bThe Royal Society
_g1980
300 _bill.
_c30 cm.
_a172 p.
942 _cLN
999 _c639
_d639