APA (7th ed.) Citation

Duncan, A. R. C. (1990). On the nature of persons. Peter Lang.

Chicago Style (17th ed.) Citation

Duncan, Alastair R. C. On the Nature of Persons. New York [etc.]: Peter Lang, 1990.

MLA (9th ed.) Citation

Duncan, Alastair R. C. On the Nature of Persons. Peter Lang, 1990.