Cita APA (7a ed.)

Frey, R. G. (1983). Rights, killing and suffering: Moral vegetarianum and applied ethics. Blackwell.

Cita Chicago Style (17a ed.)

Frey, Raymond G. Rights, Killing and Suffering: Moral Vegetarianum and Applied Ethics. Oxford: Blackwell, 1983.

Cita MLA (9a ed.)

Frey, Raymond G. Rights, Killing and Suffering: Moral Vegetarianum and Applied Ethics. Blackwell, 1983.