1. Budiansky, Stephen (1997) Covenant of the Wild. London: Phoenix.
2. Clough, David L. (2012) On Animals, Volume 1, Systematic Theolog y. London: T & T Clark.
3. Consuming Animal Creatures: The Christian Ethics of Eating Animals;Clough David L.;Studies in Christian Ethics,2017
4. Clough, David L. (2019) On Animals, Volume 2, Theological Ethics. London: T&T Clark.
5. Clough David L. Margaret B. Adam David Grumett and Siobhan Mullan (2020) The Christian Ethics of Farmed Animal Welfare: A Policy Framework for Churches and Christian Organizations . https://www.abdn.ac.uk/sdhp/divinity-religious-studies/cefaw/cefaw-policy-framework-2138.php.