| #441 | McGraw-Hill yearbook of science & technology : comprehensive coverage of recent events and research as compiled by the staff of the McGraw-Hill encyclopedia of science. -- New York : McGraw-Hill, 1962-2015. -- ISSN 0076-2016 |
| #442 | Medycyna Weterynaryjna : Czasopismo Polskiego Towarzystwa Nauk Weterynaryjnych. -- Warszawa : Państwowe Wydawnictwo Rolnicze i Leśne, 1945-. -- ISSN 0025-8628 |
| #443 | Membrane technology. -- Oxford : Elsevier Advanced Technology, 1990-. -- ISSN 0958-2118 print. -- ISSN 1873-4049 online |
| #444 | Mémoires de la Classe des sciences. Académie royale de Belgique, Collection in 8. -- Bruxelles : Palais des académies, 1904-. -- ISSN 0365-0936 |
| #445 | Memoirs of the Entomological Society of Canada. -- Ottawa : Entomological Society of Canada, 1963-1997. -- ISSN 0071-075X |
| #446 | Memoirs of the Faculty of Engineering and Design Kyoto Institute, Series science and technology. -- Kyoto : Inst. of Technology, 1984-2006. -- ISSN 0911-0305 |
| #447 | Memoirs of the Queensland Museum. -- Brisbane : Queensland Museum, 1912-. -- ISSN 0079-8835 |
| #448 | Memoirs of the School of Science & Engineering, Waseda University. -- Tokyo : Waseda Univ., 1954-. -- ISSN 0369-1950 |
| #449 | Memorias de la Real Sociedad Espanola de Historia Natural. -- Madrid : Facultades de Biología y Geología, 1903-. -- ISSN 1132-0869 |
| #450 | Memorie della Accademia delle scienze di Torino, Pt. 1. Classe di scienze fisiche, matematiche e naturali. -- Torino : Accademia delle scienze, 1951-. -- ISSN 0373-3033 |