| #531 | Přepravní a tarifní věstník. -- Praha : Nakladatelství dopravy a turistiky, 1964-. -- ISSN 0032-7514 |
| #532 | Psychológia a patopsychológia dieťaťa. -- Bratislava : Slovak Academic Press, 1966-. -- ISSN 0555-5574 |
| #533 | Psychologie dnes : Psychologie, psychoterapie, životní styl. -- Praha : Portál, 1999-. -- ISSN 1212-9607 |
| #534 | Pulp & paper Canada. -- Westmount : National Business Publ., 1974-. -- ISSN 0316-4004 |
| #535 | Pulp & paper magazine of Canada : an independent journal serving Canada's pulp and paper industry. -- Gardenvale : National Business Publ., 1903-1974. -- ISSN 0033-4103 |
| #536 | Quality progress. -- Milwaukee : American Society for Quality Control, 1968-. -- ISSN 0033-524X |
| #537 | Radioengineering. -- Brno : University of Technology-Department of Radio Electronics, 1992-. -- ISSN 1210-2512 |
| #538 | Rail international. -- Bruxelles : International Railway Congress Association, 1970-. -- ISSN 0020-8442 |
| #539 | Rail international. -- Brusseles : International Railway Congress Association, 1970-. -- ISSN 0771-1344 |
| #540 | Railvolution : The Professional Two-Monthly Magazine Of Rail Transport Worldwide. -- Zlín : M-Presse, 2001-. -- ISSN 1804-3429 |