Encyclopedias, Almanacs, Transcripts, and Maps
- Periodic Table of the Elements: Platinum
- Periodic Table of the Elements: Plutonium
- Periodic Table of the Elements: Potassium
- Periodic Table of the Elements: Praseodymium
- Periodic Table of the Elements: Promethium
- Periodic Table of the Elements: Protactinium
- Periodic Table of the Elements: Radium
- Periodic Table of the Elements: Radon
- Periodic Table of the Elements: Rhenium
- Periodic Table of the Elements: Rhodium
- Periodic Table of the Elements: Roentgenium
- Periodic Table of the Elements: Ruthenium
- Periodic Table of the Elements: Rutherfordium
- Periodic Table of the Elements: Samarium
- Periodic Table of the Elements: Seaborgium
- Periodic Table of the Elements: Silver
- Periodic Table of the Elements: Sodium
- Periodic Table of the Elements: Strontium
- Periodic Table of the Elements: Sulfur
- Periodic Table of the Elements: Tantalum