| #231 | Plasma science and technology. -- Beijing : Institute of Plasma Physics, Chinese Academy of Sciences, 1999-. --  ISSN 1009-0630 | 
| #232 | Plastické hmoty a kaučuk. -- Praha : SNTL, 1964-1973. --  ISSN 0032-1109 | 
| #233 | Plasty a kaučuk. -- Zlín : Poleng, 1974-2016. --  ISSN 0322-7340 | 
| #234 | Polimery. -- Warszawa : Instytut Chemii Przemysłowej, 1961-. --  ISSN 0032-2725 | 
| #235 | Polymer engineering reviews. -- Lausanne : Elsevier Sequoia, 1981-1984. --  ISSN 0250-8079 | 
| #236 | Polymer gels and networks. --  : Elsevier, 1993-. --  ISSN 0966-7822 print. --  ISSN 1878-4194 online | 
| #237 | Polymers for advanced technologies. -- New York : Wiley, 1990-. --  ISSN 1042-7147 print. --  ISSN 1099-1581 online | 
| #238 | Practical diabetes international. -- Chichester : John Wiley & Sons, 1995-. --  ISSN 1357-8170 print. --  ISSN 1528-252X online | 
| #239 | Der Praktiker : Schweißen und Schneiden. -- Düsseldorf : Dt. Verl. f. Schweißtechnik, 1960-. --  ISSN 0554-9965 | 
| #240 | Preprints : American Chemical Society. Division of Petroleum Chemistry. --  : American Chemical Society, 1956-2005. --  ISSN 0569-3799 |