WORLD Health Organization Fenner, F.
Smallpox and its eradication /[by] F.Fenner...[et al.] - Geneva WHO 1988 - xvi, 1460 p.
Includes index
92-4-156110-6
Smallpox
Smallpox eradication
616.912 / WWOR
Smallpox and its eradication /[by] F.Fenner...[et al.] - Geneva WHO 1988 - xvi, 1460 p.
Includes index
92-4-156110-6
Smallpox
Smallpox eradication
616.912 / WWOR