| #5561 | Personal engineering & instrumentation news. -- Boston : Personal Engineering Communications, 1984-1998. -- ISSN 0748-0016 |
| #5562 | Perspektiven (Wien). -- Wien : Compress Verlags, 1988-. -- ISSN 1560-8506 |
| #5563 | Petroleum economist. -- London : Petroleum Economist, 1974-. -- ISSN 0306-395X |
| #5564 | Petroleum review. -- London : Institute of Petroleum, 1968-. -- ISSN 0020-3076 |
| #5565 | Petroleum times. -- Maidstone : Whitehall Press, 1981-1988. -- ISSN 0263-3590 |
| #5566 | Petroleum times energy report. -- Swanley : Nexus Business Communications, 1991-1998. -- ISSN 1461-0361 |
| #5567 | Petrologia. -- Moskva : Nauka, 1993-. -- ISSN 0869-5903 |
| #5568 | Pharma + Food : Hygiene - Produktion - Ausrüstung. -- Heidelberg : Hüthig, 1998-. -- ISSN 1434-8942 |
| #5569 | PharmaTec. -- Würzburg : Vogel Business Media, 2008- |
| #5570 | Philips journal of research. -- Eidhoven : Philips Research Laboratories, 1978-. -- ISSN 0165-5817 |