Harman, G. (1977). The nature of morality: An introduction to ethics. O.U.P..
Chicago-čujuhus (17. p.)Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. New York: O.U.P., 1977.
MLA-čujuhus (9. p.)Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. O.U.P., 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.