Cita APA (7a ed.)

Borovik, A., & Gardiner, T. (2019). The essence of mathematics: Through elementary problems. Open Book Publishers.

Cita Chicago Style (17a ed.)

Borovik, Alexandre, y Tony Gardiner. The Essence of Mathematics: Through Elementary Problems. Cambridge, UK: Open Book Publishers, 2019.

Cita MLA (9a ed.)

Borovik, Alexandre, y Tony Gardiner. The Essence of Mathematics: Through Elementary Problems. Open Book Publishers, 2019.