Cita APA (7a ed.)

Kołakowski, L., & Kołakowska, A. (2013). Is God happy?: Selected essays. Basic Books.

Cita Chicago Style (17a ed.)

Kołakowski, Leszek, y Agnieszka Kołakowska. Is God Happy?: Selected Essays. New York: Basic Books, 2013.

Cita MLA (9a ed.)

Kołakowski, Leszek, y Agnieszka Kołakowska. Is God Happy?: Selected Essays. Basic Books, 2013.