| #631 | PSM : stavební infozpravodaj. -- Praha : PSM CZ, 2001-2014. -- ISSN 1802-6907 |
| #632 | Public roads. -- Washington : US Federal Highway Administration, 1918-. -- ISSN 0033-3735 |
| #633 | Půdní byt. -- Praha : Roof, 2000-2001. -- ISSN 1213-1008 |
| #634 | QST : devoted entirely to Amateur Radio. -- Newington : The American Radio Relay Leaque, 1915-. -- ISSN 0033-4812 |
| #635 | Qualified remodeler. -- Chicago : Qualified Remodeler, 1975-. -- ISSN 0098-9207 print. -- ISSN 1948-5646 online |
| #636 | RAC. Refrigeration, air conditioning & heat recovery. -- Croydon : Maclaren Publishers, 1981-1988. -- ISSN 0263-5739 |
| #637 | Radon bulletin : informace, poznatky, rady, zkušenosti. -- Praha : Státní ústav radiační ochrany, 1999-. -- ISSN 2336-7733 |
| #638 | Railway track and structures. -- New York : Simmons-Boardman, 1953-. -- ISSN 0033-9016 |
| #639 | Real estate New York. -- New York : Real Estate New York, 1994-. -- ISSN 1079-1272 |
| #640 | Realit. -- Praha : Mladá fronta, 1994-. -- ISSN 1210-8308 |