Diagrams of international vital statistics : together with a table of correlation coefficients between birth and death-rates, &c. / by C. V. Drysdale.
- Drysdale, C. V. (Charles Vickery), 1874-1961.
- Date:
- 1912
Licence: In copyright
Credit: Diagrams of international vital statistics : together with a table of correlation coefficients between birth and death-rates, &c. / by C. V. Drysdale. 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.
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