Robinson, N., & Macmurray, J. (1952). The claim of morality: By N.H.G. Robinson. With an introduction by John Macmurray. Gollancz.

Robinson, N.H.G, and John Macmurray. The Claim of Morality: By N.H.G. Robinson. With an Introduction by John Macmurray. London: Gollancz, 1952.

Robinson, N.H.G, and John Macmurray. The Claim of Morality: By N.H.G. Robinson. With an Introduction by John Macmurray. Gollancz, 1952.