| #511 | Památky a příroda. -- Praha : Orbis, 1976-1991. -- ISSN 0139-9853 |
| #512 | Panurus : regionální ornitologický sborník Východočeské pobočky České společnosti ornitologické při VČM v Pardubicích. -- Pardubice : Východočeské muzeum, 1989-. -- ISSN 1211-6424 |
| #513 | Papers and proceedings of the Royal Society of Tasmania. -- Hobart : The Royal Society of Tasmania, 1859-. -- ISSN 0080-4703 |
| #514 | Petroleum science. -- Beijing : Editorial Office of Petroleum Science, 1998-. -- ISSN 1672-5107 print. -- ISSN 1995-8226 online |
| #515 | Petrology. -- Moscow : Nauka Interperiodica, 1993-. -- ISSN 0869-5911 print. -- ISSN 1531-8540 online |
| #516 | Philosophical transactions of the Royal Society of London, Series B, Biological sciences. -- London : Royal Society, 1934-1990. -- ISSN 0080-4622 |
| #517 | Physical oceanography. -- Utrecht : VSP, 1993-. -- ISSN 0928-5105 print. -- ISSN 0928-5105 online |
| #518 | Physical review, E, Statistical, nonlinear, and soft matter physics. -- New York : American Physical Society, 2001-. -- ISSN 1539-3755 |
| #519 | Physical review, E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. -- New York : American Physical Society through the American Institute of Physics, 1993-2000. -- ISSN 1063-651X |
| #520 | Physics and chemistry of the earth. -- Oxford : Pergamon Press, 1956-1998. -- ISSN 0079-1946 print. -- ISSN 1879-3568 online |