| #7861 | Yearbook and List of Members - Institution of Water Engineers. -- Velká Británie : London : Institution of Water Engineers, 1947-1955 |
| #7862 | Yearbook and list of members of the Institution of structural engineers. -- Velká Británie : London : Institution of Structural Engineers, 1950-1966 |
| #7863 | Yearbook of the American Iron and Steel Institute. -- Spojené státy americké : New York : American Iron and Steel Institute, [1912-1971, 1912-1971. -- ISSN 0096-4735 |
| #7864 | Yearbook of the heating and ventilating industry. -- Velká Británie : London : Technitrade Journals, [1947]-, 1947- |
| #7865 | Yearly proceedings - Association of Iron and Steel Engineers : Reprinted from Iron and steel engineer. -- Spojené státy americké : Pittsburgh : AISE, [1938-1994], 1938-1994 |
| #7866 | Yōgyō Kyōkaishi. -- Tokyo : Yōgyō Kyōkai, 1950-1987. -- ISSN 0009-0255 print. -- ISSN 1884-2127 online |
| #7867 | Yop!. -- Praha : Mafra Media, 2004-2008. -- ISSN 1214-5343 |
| #7868 | Your Consultant. -- Spojené státy americké : New York : Association of Consulting Chemists and Chemical Engineers, 1960- |
| #7869 | Z.D.A. Abstracts. -- Velká Británie : Oxford : Zinc Development Association, [1943]-1961, 1943-1961. -- ISSN 0372-8242 |
| #7870 | Z dějin hutnictví ... -- Česká republika : Praha : Národní technické muzeum, 1975-2007. -- ISSN 0139-9810 |