APA Style

Flew, Antony. (1969). The is Ought Question . London: Macmillan ST. Martin's Press.

Chicago Style

Flew, Antony. The is Ought Question. London: Macmillan ST. Martin's Press, 1969. .

MLA Style

Flew, Antony. The is Ought Question. London: Macmillan ST. Martin's Press, 1969. .

Turabian Style

Flew, Antony. The is Ought Question. London: Macmillan ST. Martin's Press, 1969. .