APA (7th ed.) Citation

Smullyan, R. M. Fixed points and self-reference. Wiley.

Chicago Style (17th ed.) Citation

Smullyan, Raymond M. Fixed Points and Self-reference. Wiley.

MLA (9th ed.) Citation

Smullyan, Raymond M. Fixed Points and Self-reference. Wiley.

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