| #1141 | Mediterránea. -- Alicante : Servicio de Publicaciones, 1982-. -- ISSN 1130-6203 |
| #1142 | Medycyna doswiadczalna i mikrobiologia. -- Warszawa : Państwowy Zakład Higieny, 1949-. -- ISSN 0025-8601 |
| #1143 | Mechanisms of ageing and development. -- Amsterdam : Elsevier Ireland, 1972-. -- ISSN 0047-6374 print. -- ISSN 1872-6216 online |
| #1144 | Mechanisms of development. -- Shannon : Elsevier Scientific Ireland, 1990-. -- ISSN 0925-4773 print. -- ISSN 1872-6356 online |
| #1145 | Mémoires du Muséum national d'histoire naturelle, Ser. A. Zoologie. -- Paris : Muséum national d'histoire naturelle. -- ISSN 1243-4442 |
| #1146 | Memoirs of National Institute of Polar Research, Ser. E: Biology and medical science. -- Tokyo : National Inst. of Polar Research, 1974-. -- ISSN 0386-0744 |
| #1147 | Memoirs of the Faculty of Science, Kyoto University, Serie B: Biology. -- Kyoto : Kyoto University, Faculty of Science, 1967-. -- ISSN 0454-7802 |
| #1148 | Memoirs of the Museum of Victoria Melbourne Australia. -- Melbourne : Museum of Victoria, 1984-1994. -- ISSN 0814-1827 |
| #1149 | Memoranda societatis pro fauna et flora Fennica. -- Helsinki : Societas pro Fauna et Flora fennica, 1927-. -- ISSN 0373-6873 print. -- ISSN 1796-9816 online |
| #1150 | Memorias do Instituto Oswaldo Cruz. -- Rio de Janeiro : Fundação Oswaldo Cruz, 1909-. -- ISSN 0074-0276 print. -- ISSN 1678-8060 online |