APA (7th ed.) Citation

Eco, U., & Weaver, W. (1989). Foucault's pendulum. Secker & Warburg.

Chicago Style (17th ed.) Citation

Eco, Umberto, and William Weaver. Foucault's Pendulum. London: Secker & Warburg, 1989.

MLA (9th ed.) Citation

Eco, Umberto, and William Weaver. Foucault's Pendulum. Secker & Warburg, 1989.

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