APA (7th ed.) Citation

Beck, M., & Geoghegan, R. (2010). The art of proof: Basic training for deeper mathematics. Springer.

Chicago Style (17th ed.) Citation

Beck, Matthias, and Ross Geoghegan. The Art of Proof: Basic Training for Deeper Mathematics. London: Springer, 2010.

MLA (9th ed.) Citation

Beck, Matthias, and Ross Geoghegan. The Art of Proof: Basic Training for Deeper Mathematics. Springer, 2010.