| #881 | Proceedings of the National Science Council, Republic of China, Part D, Mathematics, science and technology education. -- Taipei : National Science Council, 1991-. -- ISSN 1017-7124 |
| #882 | Proceedings of the Romanian Academy, Series A, Mathematics, physics, technical sciences, information science. -- Bucuresti : Pub. House of the Romanian Academy, 2000-. -- ISSN 1454-9069 |
| #883 | Proceedings of the Royal Irish Academy, Section A, Mathematical and physical sciences. -- Dublin : Royal Irish Academy, 1902-1997. -- ISSN 0035-8975 |
| #884 | Proceedings of the Royal Society of Edinburgh. -- Edinburgh : Neill and Co., 1844-1941. -- ISSN 0370-1646 |
| #885 | Proceedings of the Royal Society of Edinburgh, Sect. A, Mathematical and Physical Sciences. -- Edinburgh : Royal Society of Edinburgh, 1942-. -- ISSN 0080-4541 |
| #886 | Proceedings of the Royal Society of London, Series A, Mathematical and physical sciences. -- London : Royal Society, 1934-1990. -- ISSN 0080-4630 |
| #887 | Proceedings of the Steklov Institute of Mathematics. -- Providence : American Mathematical Society. -- ISSN 0081-5438 print. -- ISSN 1531-8605 online |
| #888 | Proceedings of Vibration Problems. -- Warszawa : Panstwowe Wydawnictwo Naukowe, 1959-1974. -- ISSN 0032-9576 |
| #889 | Program : Electronic library and information systems. -- Bingley : Emerald, 1966-. -- ISSN 0033-0337 print. -- ISSN 1758-7301 online |
| #890 | Progress of mathematics. -- Allahabad : Academy of Progress of mathematics. -- ISSN 0555-4330 |