1. Bailey, L. H. 1933. The cultivated conifers in North America. Macmillan, New York.
2. Baxter, J. N., B. Lythgoe, B. Schahes, S. Trippet & B. K. Blount. 1958. Taxine I, The major alkaloid of the yew,Taxus baccata L. Proc. Chem. Soc. (London) 9.
3. Bierhorst, D. 1971. Morphology of vascular plants. Macmillan, New York.
4. Bliss, M. C. 1918. Interrelationships of the Taxineae. Bot. Gaz. (Crawfordsville) 66: 54–60.
5. Brown, R. G. &F. E. Hull. 1951.Taxus (yew) poisoning of cattle. J. Amer. Vet. Med. Assoc. 118:398.