1. Autobiographical Sketches and Personal Recollections;Angell,1892
2. Legal Educationhttps://aldf.org/how_we_work/legal-education/
3. The Legal Voice for All Animalshttps://aldf.org/
4. Bibliography—The Linkhttps://www.animaltherapy.net/animal-abuse-human-violence/bibliography-the-link/
5. Animal control, animal welfare, and the veterinarian;Arkow;Journal of the American Veterinary Medical Association,1987