APA (7th ed.) Citation

Wolfram, S. (1990). Philosophical logic: An introduction (Repr.). Routledge.

Chicago Style (17th ed.) Citation

Wolfram, Sybil. Philosophical Logic: An Introduction. Repr. London u.a: Routledge, 1990.

MLA (9th ed.) Citation

Wolfram, Sybil. Philosophical Logic: An Introduction. Repr. Routledge, 1990.

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