| #441 | Botaničeskie materialy Gerbariâ Instituta botaniki Akademii nauk Kazahskoj SSR. -- Alma-Ata : Nauka, 1963-. -- ISSN 0321-0138 |
| #442 | Botaničeskij žurnal. -- Leningrad : Nauka, 1948-. -- ISSN 0006-8136 |
| #443 | Botanika. -- Minsk : Nauka i technika, 1963-. -- ISSN 0507-4665 |
| #444 | Botanisk tidsskrift. -- Kobenhavn : Dansk Botanisk Forening, 1866-1981. -- ISSN 0006-8187 |
| #445 | Braunschweiger naturkundliche Schriften. -- Braunschweig : Staatliche Naturhistorisches Museum, 1980-. -- ISSN 0174-3384 |
| #446 | The breast journal. -- Cambridge : Blackwell Science, 1995-. -- ISSN 1075-122X print. -- ISSN 1524-4741 online |
| #447 | Breviora. -- Cambridge : Harvard University, 1952-. -- ISSN 0006-9698 print. -- ISSN 1938-2979 online |
| #448 | British abstracts, A3. Physiology, biochemistry, anatomy, pharmacology, experimental medicine. -- , 1945-1953. -- ISSN 0365-8643 |
| #449 | Brittonia. -- Bronx : New York Botanical Garden, 1931-. -- ISSN 0007-196X print. -- ISSN 1938-436X online |
| #450 | The Bryologist. -- Las Vegas : American Bryological and Lichenological Society, 1898-. -- ISSN 0007-2745 print. -- ISSN 1938-4378 online |