The cultivation of viruses and rickettsiae in the chick embryo /
Beveridge, W. I. B.(William Ian Beardmore),1908-2006,author.
Burnet, F. M.(Frank Macfarlane),Sir,1899-1985,author.
Great Britain.His Majesty's Stationery Office.
Medical Research Council (Great Britain),issuing body.
"July 18, 1946".