Public health personnel in the United States, 1980 : second report to the Congress of the Secretary of Health and Human Services as required by section 793 of the Public Health Service Act.

Mode of access: Internet.

Mortality rates 1910-1920 with population of the federal censuses of 1910 and 1920 and intercensal estimates of population.

"Prepared under the direction of Dr. William H. Davis, chief statistician for vital statistics, and under the immediate supervision of Richard C. Lappin, expert special agent of the Bureau of the Census.--Letter of transmittal, p. 5.