APA (7th ed.) Citation

Hudson, W. D. (1969). The is-ought question: A collection of papers on the central problems in moral philosophy. Macmillan.

Chicago Style (17th ed.) Citation

Hudson, W. D. The Is-ought Question: A Collection of Papers on the Central Problems in Moral Philosophy. London: Macmillan, 1969.

MLA (9th ed.) Citation

Hudson, W. D. The Is-ought Question: A Collection of Papers on the Central Problems in Moral Philosophy. Macmillan, 1969.

Warning: These citations may not always be 100% accurate.