Subject
- Phosphorescence1
- Physicists83
- Plant geneticists1
- Platt, John Rader, 1918-3
- Pople, John A., 1925-20041
- Portraits, Group1
- Princeton University1
- Pullman, Bernard1
- Quantum chemistry42
- Quantum theory17
- Raman, C. V., 1888-19701
- Rieke, C. A.1
- Robert A. Welch Foundation3
- Roothaan, Clemens C. J.2
- Roothaan, Clemens C. J., 1918-20191
- Rudenberg, Klaus2
- Schrödinger equation1
- Science publishing2
- Scientific apparatus and instruments1
- Scientists, Black1