| #431 | Precision engineering. -- Guildford : IPC Science and Technology Press, 1979-. -- ISSN 0141-6359 print. -- ISSN 1873-2372 online |
| #432 | Pro sound news. -- London : Pro Sound News Publications, Spotlight Publications Limited, 1986-. -- ISSN 0269-4735 |
| #433 | Pro sound news Europe : the business of professional audio. -- Velká Británie : Croydon : Pro Sound News Publications, 1990 London : United Business Media London : Intent Media London : NewBay Media, 1993-2017. -- ISSN 2051-8854 |
| #434 | Proceedings of the IEEE. -- New York : Institute of Electrical and Electronics Engineers, 1963-. -- ISSN 0018-9219 print. -- ISSN 1558-2256 online |
| #435 | Proceedings of the Institution of Electrical Engineers. -- London : Institution of Electrical Engineers, 1963-1979. -- ISSN 0020-3270 |
| #436 | Proceedings of the Institution of Radio and Electronics Engineers Australia. -- Australie : Sydney : Institution of Radio Engineers Australia, 1937-1963. -- ISSN 0020-3521 |
| #437 | Productronic. -- Heidelberg : Hüthig, 1985-. -- ISSN 0930-1100 |
| #438 | Produktion von Leiterplatten und Systemen. -- Saalgau : Leuze, 1999-. -- ISSN 1436-7505 |
| #439 | Progress in quantum electronics. -- Oxford : Pergamon Press, 1969-. -- ISSN 0079-6727 |
| #440 | Pubblicazioni. Istituto Elettrotechnico Nazionale Galileo Ferraris. -- Torino : Istituto Elettrotecnico nazionale Galileo Ferraris, 1935-. -- ISSN 0018-957X |