| #1461 | Proceedings of the Estonian Academy of Sciences, Chemistry. -- Tallinn : Estonian academy publishers, 1990-. -- ISSN 1406-0124 |
| #1462 | Proceedings of the Chemical Society. -- London : The chemical society, 1957-1964. -- ISSN 0369-8718 |
| #1463 | Proceedings of the Indian Academy of Sciences. Chemical sciences. -- Bangalore : Indian Academy of Sciences, 1980-2003. -- ISSN 0253-4134 print. -- ISSN 0973-7103 online |
| #1464 | Proceedings of the Royal Irish Academy, Section B, Biological, geological, and chemical science. -- Dublin : Royal Irish Academy, 1902-1992. -- ISSN 0035-8983 |
| #1465 | Proceedings of the Symposium on Combustion. -- Pittsburgh : Combustion Institute, 1928-1937. -- ISSN 1062-2888 print. -- ISSN 1876-438X online |
| #1466 | Process. -- Würzburg : Vogel Industrie Medien, 1994-. -- ISSN 0946-2856 |
| #1467 | Process biochemistry. -- Barking : Elsevier, 1991-. -- ISSN 1359-5113 |
| #1468 | Process biochemistry. -- Watford : Elsevier, 1966-1990. -- ISSN 0032-9592 |
| #1469 | Process safety and environmental protection. -- Rugby : The Institution of Chemical Engineers, 1990-. -- ISSN 0957-5820 print. -- ISSN 1744-3598 online |
| #1470 | Processing. -- Tonbridge : IML Group Publ., 1974-1999. -- ISSN 0305-439X |