Skew frequency curves in biology and statistics.

"Erratum" slip inserted to face p. 44.

Comparative statistics of the public utilities of Illinois : years 1914 and 1919 /

Cover title.

Statistics of local public school systems; staff.

Mode of access: Internet.

Health statistics bulletin /

Description based on: Oct. 28, 1946; title from caption.

Illinois Department of Public Health long-term care facility profiles.

Title from caption.

Vital and health statistics.

Published: Rockville, Md. <, 1973- >

Twenty-five years of health progress; a study of the mortality experience among the industrial policyholders of the Metropolitan Life Insurance Company 1911 to 1935,

Mode of access: Internet.

Health effects evaluation data file : data file design, abstraction, coding, and computerization of the 1977 and 1978 health hazard evaluation and technical assistance reports /

Mode of access: Internet.

Public assistance statistics.

Mode of access: Internet.