Encyclopedias, Almanacs, Transcripts, and Maps
- Pedro de Alvarado
- Pedro de Sintra
- Pedro de Teixeira
- Pedro Fernandez de Quirós
- Pedro João Baptista
- Pedro Nunes
- Pedro Páez
- Pedro Vial
- Pedro Vial Charts the Santa Fe Trail and Opens the Southwest to Exploration and Trade
- Peebles, J(ames) M(artin) (1822-1922)
- Peer Review
- Pelageya Yakovlevna Polubarinova Kochina
- Pelicans
- Pelicans
- Pelicans and Other Fishing Birds: Pelecaniformes
- Pelicans: Pelecanidae
- Pelizaeus-Merzbacher disease
- Pelizaeus-Merzbacher Disease
- Pellet Reading (or Billet Reading)
- Pellevoisen