| #191 | Bulletin des Schweizerischen Elektrotechnischen Vereins, des Verbandes Schweizerischer Elektrizitätswerke. -- Zürich : Schweizerischer Elektrotechnischer Verein, 1974-2002. -- ISSN 1420-7028 |
| #192 | Bulletin international de renseignements frigorifiques. -- FRANCE : Paris : Institut international du froid, 1922-1933. -- ISSN 1145-0169 |
| #193 | Bulletin mensuel des renseignements frigorifiques. -- Paris : Institut international du froid, 1920-1927. -- ISSN 1145-0150 |
| #194 | Bulletin - Northwest Public Power Association. -- Vancouver : Northwest Public Power Association, 1992-. -- ISSN 1094-0049 |
| #195 | Bulletin of Applied Mechanics. -- Prague : Czech Technical University, 2005-. -- ISSN 1801-1217 |
| #196 | Bulletin of PG University of Ploiesti, Series Mathematics, Informatics, Physics. -- Ploieşti : Universitatea Petrol-Gaze din Ploieşti, 2001-. -- ISSN 1224-4899 |
| #197 | Bulletin of Research Institute for Polymers and Textiles. -- Tsukuba : Kōgyō Gijutsuin. Sen'i Kōbunshi Zairyō Kenkyūjo, 1969-1992. -- ISSN 0371-0807 |
| #198 | Bulletin of the American Physical Society. -- New York : American Institute of Physics, 1925-2006. -- ISSN 0003-0503 |
| #199 | Bulletin of the atomic scientists. -- Chicago : Atomic Scientists of Chicago, 1946-2008. -- ISSN 0096-3402 print. -- ISSN 1938-3282 online |
| #200 | Bulletin of the Crimean Astrophysical Observatory. -- New York : Allerton Press, 1979-. -- ISSN 0190-2717 print. -- ISSN 1934-7863 online |