APA
World Health Organization, . (1947). Annual epidemiological and vital statistics: part - I vital statistics and causes of death, part - ii cases of and deaths from notifiable diseases. : World health organisation, Geneva.
Chicago
World Health Organization, . 1947. Annual epidemiological and vital statistics: part - I vital statistics and causes of death, part - ii cases of and deaths from notifiable diseases. : World health organisation, Geneva.
Harvard
World Health Organization, . (1947). Annual epidemiological and vital statistics: part - I vital statistics and causes of death, part - ii cases of and deaths from notifiable diseases. : World health organisation, Geneva.
MLA
World Health Organization, . Annual epidemiological and vital statistics: part - I vital statistics and causes of death, part - ii cases of and deaths from notifiable diseases. : World health organisation, Geneva. 1947.