- Regan, Tom✖[remove]97
- Cohen, Carl, 1931-11
- Singer, Peter, 1946-10
- Gandhi, Mahatma, 1869-19483
- Kant, Immanuel, 1724-18043
- American Medical Association2
- Bullfrog Films2
- Culture and Animals Foundation2
- Descartes, Rene, 1596-16502
- Moore, G. E. (George Edward), 1873-19582
- North Carolina State University. Libraries2
- Taylor, Paul W.2
- Animal Rights Network1
- Aristotle1
- Coetzee, J. M., 1940-1
- Darwin, Charles, 1809-18821
- Ellison, Ralph1
- Fox, Marye Anne, 1947-20211
- Francione, Gary L. (Gary Lawrence), 1954-1
- Frey, R. G. (Raymond Gillespie)1