U.N. Demographic Yearbook
Business Statistics
The State of Small Business
Statistical Yearbook
Vital Statistics of the United States
Dictionary of Demography
A Bibliographic Guide to Population Geography
Recent Social Trends in the United States 1960-1990
County and City Data Book
Crime in the United States
CALVIN AND HOBBES 1998 Watterson Dist. by UNIVERSAL PRESS SYNDICATE. Reprinted with permission. All rights reserved.