Forms of tables of vital statistics : with special reference to the needs of the health department of a city / by John S. Billings.

Licence: Public Domain Mark

Credit: Forms of tables of vital statistics : with special reference to the needs of the health department of a city / by John S. Billings. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.