| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Aboriginal Population of Alameda and Contra Costa Counties, California | Cook, Sherburne Friend, 1896-1974 | en | 2010-09-27 | ||||
| The Aboriginal Population of the North Coast of California | Cook, Sherburne Friend, 1896-1974 | en | 2010-09-26 | ||||
| An Essay on the Principle of Population | Malthus, T. R. (Thomas Robert), 1766-1834 | en | 2003-07-01 | ||||
| Prevalence of Imprisonment in the U.S. Population, 1974-2001 | Bonczar, Thomas P. | en | Imprisonment -- United States -- Statistics; Prisoners -- United States -- Statistics | 2009-06-23 |