Bibliography
- The Chamorro language of the island of Guam (1905)
- Useful plants of the island of Guam (1905) (Reissue 2009, Guamology Publishing)
- Cactaceae of Northeastern and Central Mexico (1909)
- Edible plants and textiles of ancient America (1916)
- Natural history of Paradise Key and the nearby Everglades of Florida (1919)
- Notes on the genus Dahlia, with descriptions of new species (1919)
- Synopsis of the genus Datura (1921)
- Daturas of the Old World and New (1922)
- Ant Acacias and Acacia Ants of Mexico (1923)
Read more about this topic: William Edwin Safford