WHO expert committee on smallpox eradication
Subtitle: second report.
Series: World Health Organization. Technical report series -- no. 493; Technical report series (World Health Organization) -- 493.
Publisher: World Health Organization
Published: 1972
Place of publication: Geneva
Language: eng
Number of pages: 64
Subjects: Smallpox -- Prevention.
Other titles: Smallpox eradication.
Notes: Geneva, 22-29 November 1971.