| #2121 | Photosynthetica. -- Praha : Ústav experimentální botaniky AV ČR, 1967-. -- ISSN 0300-3604 print. -- ISSN 1573-9058 online |
| #2122 | Phronesis. -- Assen : Van Gorcum, 1955-. -- ISSN 0031-8868 print. -- ISSN 1568-5284 online |
| #2123 | Physica status solidi, A, Applied Research. -- Berlin : Akademie-Verlag, 1970-2004. -- ISSN 0031-8965 print. -- ISSN 1521-396X online |
| #2124 | Physica status solidi, B, Basic Research. -- Berlin : Akademie-Verlag, 1971-. -- ISSN 0370-1972 print. -- ISSN 1521-3951 online |
| #2125 | Physical review and Physical review letters index. -- New York : American Physical Society, 1970-. -- ISSN 0094-0003 |
| #2126 | Physical review letters. -- New York : American Physical Society, 1958-. -- ISSN 0031-9007 |
| #2127 | Physics in medicine and biology. -- Bristol : Institute of Physics Publishing, 1956-. -- ISSN 0031-9155 print. -- ISSN 1361-6560 online |
| #2128 | Physics today. -- Woodbury : American Institute of Physics, 1948-. -- ISSN 0031-9228 print. -- ISSN 1945-0699 online |
| #2129 | Physiologia bohemoslovaca. -- Prague : Institute of Physiology of Czechoslovak Academy of Sciences, 1952-1990. -- ISSN 0369-9463 |
| #2130 | Physiological chemistry and physics. -- Wake Forest : Meridional Publications, 1983-. -- ISSN 0748-6642 |