| #5821 | Pure and applied chemistry. -- Oxford : Blackwell, 1960-. -- ISSN 0033-4545 print. -- ISSN 1365-3075 online |
| #5822 | PV international plastics magazine. -- Heidelberg : Zechner & Hüthig, 1991-. -- ISSN 0941-8938 |
| #5823 | P6-Téma. -- Český Těšín : Poradce, 1995-2004. -- ISSN 1211-2003 |
| #5824 | QST : devoted entirely to Amateur Radio. -- Newington : The American Radio Relay Leaque, 1915-. -- ISSN 0033-4812 |
| #5825 | Quality progress. -- Milwaukee : American Society for Quality Control, 1968-. -- ISSN 0033-524X |
| #5826 | Quark. -- Bratislava : Perfekt, 1995-. -- ISSN 1335-4000 print. -- ISSN 1337-8422 online |
| #5827 | Quarry management. -- Nottingham : Quarry Managers' Journal, 1984-. -- ISSN 0950-9526 |
| #5828 | Quarry manager´s journal. -- London : Quarry manager´s journal, 1918-1974. -- ISSN 0033-5274 |
| #5829 | Quarterly journal of mathematics. -- Oxford : Oxford University Press, 1930-. -- ISSN 0033-5606 print. -- ISSN 1464-3847 online |
| #5830 | Quarterly journal of mechanics and applied mathematics. -- Oxford : Oxford University Press, 1948-. -- ISSN 0033-5614 print. -- ISSN 1464-3855 online |