| #431 | Progress in quantum electronics. -- Oxford : Pergamon Press, 1969-. -- ISSN 0079-6727 |
| #432 | Pubblicazioni. Istituto Elettrotechnico Nazionale Galileo Ferraris. -- Torino : Istituto Elettrotecnico nazionale Galileo Ferraris, 1935-. -- ISSN 0018-957X |
| #433 | R.F. design : engineering principles and practices. -- Atlanta : Argus Business, 1978-. -- ISSN 0163-321X |
| #434 | Radio : Ježemesjačnyj naučno-populjarnyj radiotechničeskij žurnal. -- Moskva : Radio, 1924-. -- ISSN 0033-765X |
| #435 | Radio. -- Praha : FCC Public, 1998-1999. -- ISSN 1212-0804 |
| #436 | Radio and electronic engineer. -- London : IERE, 1963-1984. -- ISSN 0033-7722 |
| #437 | Radio communication. -- London : Radio Society of Great Britain, 1968-1994. -- ISSN 0033-7803 |
| #438 | Radio-electronics. -- New York : Gernsback Publications, 1948-1992. -- ISSN 0033-7862 |
| #439 | Radio, Fernsehen, Elektronik. -- Berlin : Verlag Technik, 1968-1997. -- ISSN 0033-7900 |
| #440 | Radio science. -- Washington : American Geophysical Union, 1966-. -- ISSN 0048-6604 print. -- ISSN 1944-799X online |