Basu R. N., Jezek Z., Ward N. A., World Health Organization
Eradication of smallpox from India - - New Delhi World Health Organization 1979 - 346 p. 25 cm. - .
Smallpox, India
India
Smallpox
WC588 / BAS
Eradication of smallpox from India - - New Delhi World Health Organization 1979 - 346 p. 25 cm. - .
Smallpox, India
India
Smallpox
WC588 / BAS