Encyclopedias, Almanacs, Transcripts, and Maps
- Politics and Religion: Politics and African Religious Traditions
- Politics and Religion: Politics and Ancient Mediterranean Religions
- Politics and Religion: Politics and Buddhism
- Politics and Religion: Politics and Chinese Religion
- Politics and Religion: Politics and Christianity
- Politics and Religion: Politics and Islam
- Politics and Religion: Politics and Japanese Religions
- Politics and Religion: Politics and Judaism
- Politics and Religion: Politics and Native American Religious Traditions
- Politics and Religion: Politics and Oceanic Religions
- Pollution Control
- Pollution Credits
- Pollution Prevention Act (1990)
- Polunin, Nicholas (1909 – 1997) English Environmentalist
- Polychaeta (Clam, Sand, and Tubeworms)
- Polychlorinated Biphenyls
- Polycyclic Aromatic Hydrocarbons
- Polycyclic Organic Compounds
- polyethene
- Polymixiiformes (Beardfishes)