Encyclopedias, Almanacs, Transcripts, and Maps
- Parsonage-Turner Syndrome
- Parsons, Denys (1914-)
- Parsons, Jack (1914-1952)
- Participation
- Participatory Design
- Particle Accelerators
- Particle Identification
- Particle Physics, Elementary
- Pascal's Triangle
- Pascal, Guillermo B. (1906-)
- Pascal’S Triangle
- Pasqually, Martines de (ca. 1710-1774)
- Pastoral Care and Healthcare Chaplaincy
- Patenting Organisms and Basic Research
- Paternity and Parentage Testing
- Paternity and Parentage Testing
- Paternity Evidence
- Paterson, T(homas) T(homson) (1909-)
- Path of Gnostic Light
- Pathetism