| #421 | Peru freight transport report. -- London : Business Monitor International, 2006-. -- ISSN 1752-5985 |
| #422 | Philippines freight transport report. -- London : Business Monitor International, 2005-. -- ISSN 1750-5186 |
| #423 | Pilot. -- Claygate : Lernhurst Publications, 1967-. -- ISSN 0300-1695 |
| #424 | Pilot magazine. -- Praha : Pilot magazin, 2000-. -- ISSN 1213-1296 |
| #425 | Plane & pilot. -- Encino : Werner & Werner Corp., 1965-. -- ISSN 0032-0617 |
| #426 | Plavební cesty Dunaj - Odra - Labe. -- Praha : Společnost dunajsko-oderského průplavu, 1940-1950. -- ISSN 2533-7246 |
| #427 | Poland freight transport report. -- London : Business Monitor International, 2005-. -- ISSN 1750-5194 |
| #428 | Popular mechanics. -- Chicago : Popular Mechanics, 1959-. -- ISSN 0032-4558 |
| #429 | Ports and dredging. -- The Hague : IHC Holland, 1978-2012. -- ISSN 0166-5766 |
| #430 | Pošta. -- Praha : Nakladatelství dopravy a spojů, 1963-1991. -- ISSN 0322-9718 |