Vital statistics : an introduction to the science of demography / by George Chandler Whipple.

  • Whipple, George Chandler, 1866-1924.
Date:
1923

Licence: In copyright

Credit: Vital statistics : an introduction to the science of demography / by George Chandler Whipple. Source: Wellcome Collection.

    38/612 (page 16)