Cita APA

Howard-Jones, N., & Howard-Jones, N. (1975). The scientific background of the International Sanitary Conferences 1851-1938. Geneva: World Health Organization.

Citación estilo Chicago

Howard-Jones, Norman, y Norman Howard-Jones. The Scientific Background of the International Sanitary Conferences 1851-1938. Geneva: World Health Organization, 1975.

Cita MLA

Howard-Jones, Norman, y Norman Howard-Jones. The Scientific Background of the International Sanitary Conferences 1851-1938. Geneva: World Health Organization, 1975.