Magn. Reson. Chem. - -	Magnetic Resonance in Chemistry
Malaysian J. Sci. - -	Malaysian Journal of Science
Mamm. Biol. - -	Mammalian Biology
Manila J. Sci. - -	Manila Journal of Science
Mansoura Sci. Bull. - -	Mansoura Science Bulletin
Mar. Biol. - -	Marine Biology
Mar. Biotechnol. - -	Marine Biotechnology
Mar. Chem. - -	Marine Chemistry
Mar. Drugs - -	Marine Drugs
Mar. Drugs. - -	Marine Drugs
Mar. Ecol. Prog. Ser. - -	Marine Ecology Progress Series
Mar. Nat. Prod. NATO Conf. - -	Marine Natural Products Nato Conference Series
Mar. Sci. - -	Marine Science
Mass Spectrom. - -	Mass Spectrometry
Med. Chem. - -	Medicinal Chemistry
Med. Chem. Res. - -	Medicinal Chemistry Research
Med. Entomol. Zool. - -	Medical Entomology and Zoology
Med. Parazit. - -	Meditsinskaya Parazitologiya i Parazitarnye Bolezni
Med. Vet. Entomol. - -	Medical and Veterinary Entomology
Meded. Fac. Landbouww. Rijksuniv. - -	Mededelingen Faculteit Landbouwwetenschappen Rijksuniversiteit Gent
Mem. Inst. Oswaldo Cruz - -	Memórias do Instituto Oswaldo Cruz
Mem. Inst. Oswaldo Cruz. - -	Memórias do Instituto Oswaldo Cruz
Mem. Soc. Entomol. Ital. - -	Memorie della Societa Entomologica Italiana
Metabolites - -	Metabolites
Microb. Res. Agroecosyst. Manag. - -	Microbiological Research in Agroecosystem Management
Microbiol. - -	Microbiology
Microbios - -	Microbios
Microsc. Res. Tech. - -	Microscopy Research and Technique
Mikrochim. Acta - -	Mikrochimica Acta
Mitt. Dtsch. Ges. Allg. Angew. Entomol. - -	Mitteilungen der Deutschen Gesellschaft für Allgemeine und Angewandte Entomologie
Mitt. Schweiz. Entomol. Ges. - -	Mitteilungen der Schweizerischen Entomologischen Gesellschaft
Mol. Biol. Evol. - -	Molecular Biology and Evolution
Mol. Biol. Rep. - -	Molecular Biology Reports
Mol. Cell. Proteomics - -	Molecular & Cellular Proteomics
Mol. Immunol. - -	Molecular Immunology
Mol. Pharmacol. - -	Molecular Pharmacology
Mol. Phylogenet. Evol. - -	Molecular Phylogenetics and Evolution
Molecules - -	Molecules
Monatsh Chem. - -	Monatshefte für Chemie
Mosquito News - -	Mosquito News
Mutisia - -	Mutisia