| #41 | Colliery guardian. -- Redhill : Fuel & Metallurgical Journals,, 1942-1994. -- ISSN 0010-1281 |
| #42 | Compact : the customer magazine of ThyssenKrupp Steel Europe, Firemní časopis [anglická verze]. -- Duisburg : ThyssenKrupp Steel Europe, 2006- |
| #43 | Compact : das Kundenmagazin von ThyssenKrupp Steel Europe, Firemní časopis [německá verze]. -- Duisburg : ThyssenKrupp Steel Europe, 2006- |
| #44 | Corrosion. -- Houston : National Association of Corrosion Engineers, 1945-. -- ISSN 0010-9312 print. -- ISSN 1938-159X online |
| #45 | Corrosion abstracts. -- Houston : National Association of Corrosion Engineers, 1962-. -- ISSN 0010-9339 print. -- ISSN 1555-6484 online |
| #46 | Corrosion engineering, science and technology. -- London : Maney, 2003-. -- ISSN 1478-422X print. -- ISSN 1743-2782 online |
| #47 | Corrosion prevention & control. -- Beaconsfield : Scientific Surveys, 1954-. -- ISSN 0010-9371 |
| #48 | Corrosion Technology. -- London : Grampian Press, 1954-1965. -- ISSN 0589-8404 |
| #49 | Cvetnye metally. -- Moskva : Metallurgia, 1930-. -- ISSN 0372-2929 |
| #50 | Das Bauen in Stahl = Construire en acier = Costruire in acciaio. -- SWITZERLAND : Zürich : Schweizerische Zentralstelle für Stahlbau, 1968-2003. -- ISSN 0255-3104 |