Brady, Emily: The Sublime in Mondern Philosophy: Aesthetics, Ethics, and Nature. Cambridge: Cambridge University Press, 2013, 190–202 and passim.
Brady, Emily: ‘Ronald W. Hepburn: In Memoriam. The British Journal of Aesthetics’, 49 (2009): 199–202.
Brook, Isis, ed.: ‘Environmental Aesthetics’, Environmental Values 19 (2010). [special issue]
Budd, Malcolm: The Aesthetic Appreciation of Nature. Oxford: Clarendon Press, 2002, esp. Ch. iv.
Cooper, David E.: Review of The Reach of the Aesthetic. Philosophy 77 (2002): 293–296.
Guyer, Paul: ‘Hepburn’ in idem, A History of Modern Aesthetics, Vol. 3: The Twentieth Century. Cambridge: Cambridge University Press, 2014, 586–587.
Hick, John H.: Review of Christianity and Paradox. Theology Today 18 (1961): 117–119.
Parsons, Glenn: Aesthetics & Nature. London, New York: Continuum, 2008, 19–20, 74–77 and passim.
Watt, Stephen: Hepburn, ‘Ronald William (1927–)’ in Brown, Stuart (ed.), Dictionary of Twentieth Century British Philosophers, 2 vols. Bristol: Thoemmes Continuum, 2005, I, 404–406.