| #991 | Optoelectronics, instrumentation and data processing. -- New York : Allerton, 1984-. -- ISSN 8756-6990 print. -- ISSN 1934-7944 online |
| #992 | Overhead crane & hoist. -- Sidcup : Wilmington Media, 2007-. -- ISSN 1755-8344 |
| #993 | Particulate science and technology. -- Philadelphia : Taylor & Francis, 1983-. -- ISSN 0272-6351 print. -- ISSN 1548-0046 online |
| #994 | PCCP : a Journal of European Chemical Societies. -- Cambridge : Royal Society of Chemistry, 1999-. -- ISSN 1463-9076 |
| #995 | Philosophical transactions - Royal Society of London, Physical sciences and engineering. -- London : Royal Society, 1990-1996. -- ISSN 0962-8428 |
| #996 | Photonic network communications. -- Boston : Kluwer Academic Publishers, 1999-. -- ISSN 1387-974X print. -- ISSN 1572-8188 online |
| #997 | Photonics and nanostructures : fundamentals and applications. -- Amsterdam : Elsevier, 2003-. -- ISSN 1569-4410 print. -- ISSN 1569-4429 online |
| #998 | Photonics spectra. -- Pittsfield : Laurin Publ., 1982-. -- ISSN 0731-1230 |
| #999 | Photosynthesis research. -- The Hague : Nijhoff, 1980-. -- ISSN 0166-8595 print. -- ISSN 1573-5079 online |
| #1000 | Physica, A. -- Amsterdam : Elsevier, 1975-. -- ISSN 0378-4371 |