Encyclopedias, Almanacs, Transcripts, and Maps
- Mapp?
- Mapuche Religion
- Mar pa
- Maranke, John
- Marathi Religions
- Marathon, Battle of
- Marcionism
- Mardu Religion
- Mare, Walte de la
- Marett, R. R.
- Mari and Mordvin Religion
- Mariculture
- Marine Archaeology
- Marine Corps, US
- Marine Ecology
- Marine Ecology and Biodiversity
- Marine Geology and Geophysics
- Marine Invertebrates
- Marine Mammals Protection Act (1972)
- Marine Pollution