| PAIS International (1972-) | |
| Paley Center Seminars | |
| PapersFirst (1993-) | |
| Parliamentary Papers (1866-) | |
| Patrologia Latina | |
| Peace Research Abstracts | |
| Periodicals Archive Online (1665-2000) | |
| Petroleum Abstracts TULSA Database (1965-) | |
| Phase Equilibria Diagrams Online | |
| Philadelphia Tribune (1912-2001) | |
| Philosopher's Index (1940-) | |
| Philosophy Online (POIESIS) | |
| Pittsburgh Courier (1911-2002) | |
| Plunkett Research Online | |
| PolicyFile (1995-) | |
| POPLINE (1827-) | |
| ProceedingsFirst (1993-) | |
| Professional Development Collection (1930-) | |
| Project Muse | |
| ProQuest ABI/INFORM Archive | |
| ProQuest ABI/INFORM complete | |
| ProQuest BioOne Abstracts and Indexes | |
| ProQuest Business Databases | |
| ProQuest Civil War Era (1840-1865) | |
| ProQuest Congressional (1789-) | |
| ProQuest Dissertations & Theses Databases | |
| ProQuest Dissertations and Thesis at University of Houston | |
| ProQuest Historical Annual Reports (1884-) | |
| ProQuest Historical Newspapers (1889-1994) | |
| ProQuest Historical Newspapers Databases | |
| ProQuest History Databases | |
| ProQuest Performing Arts Databases | |
| ProQuest Social Sciences Databases | |
| ProQuest Statistical Insight | |
| PsycARTICLES (1985-) | |
| PsycBOOKS | |
| PsycCRITIQUES (2004-) | |
| Psychology & Behavioral Sciences Collection (1901-) | |
| PsycINFO (1887-) | |
| PsycTESTS | |
| PsycTESTS | |
| Pubget | |
| Public Administration Abstracts | |
| PubMed (1966-) | |
