| #271 | Chimičeskaja promyšlennosť. -- Moskva : Chimija, 1954-. -- ISSN 0023-110X |
| #272 | Chimija geterocikličeskich sojedinenij. -- Riga : Zinatne, 1965-. -- ISSN 0132-6244 |
| #273 | Chip. -- Praha : Vogel Burda Communications, 1991-. -- ISSN 1210-0684 |
| #274 | Chromatographia. -- Wiesbaden : F. Vieweg, 1968-. -- ISSN 0009-5893 print. -- ISSN 1612-1112 online |
| #275 | IEEE transactions on automatic control. -- New York : The Institute of Electrical and Electronics Engineers, 1963-. -- ISSN 0018-9286 print. -- ISSN 1558-2523 online |
| #276 | IFRA magazine : empowering the news publishing industry. -- Darmstadt : IFRA, 2008-2009 |
| #277 | Iluminace : Časopis pro teorii, historii a estetiku filmu. -- Praha : Národní film. archiv, 1989-. -- ISSN 0862-397X |
| #278 | Industrial and Engineering Chemistry - News Edition. -- Easton : American Chemical Society, 1923-1939. -- ISSN 0097-6423 |
| #279 | Industrial and engineering chemistry process design and development. -- Washington : American Chemical Society, 1962-1986. -- ISSN 0196-4305 print. -- ISSN 1541-5716 online |
| #280 | Industrial & engineering chemistry fundamentals. -- Washington : American Chemical Society, 1962-1986. -- ISSN 0196-4313 print. -- ISSN 1541-4833 online |