APA (7th ed.) Citation

De Morgan, A., & Heath, P. (1966). On the syllogism and other logical writings. Routledge & Kegan Paul.

Chicago Style (17th ed.) Citation

De Morgan, Augustus, and Peter Heath. On the Syllogism and Other Logical Writings. London: Routledge & Kegan Paul, 1966.

MLA (9th ed.) Citation

De Morgan, Augustus, and Peter Heath. On the Syllogism and Other Logical Writings. Routledge & Kegan Paul, 1966.