Παραπομπή APA

Ash, A., & Ash, A. G. (2006). Fearless symmetry: Exposing the hidden patterns of numbers. Princeton University Press.

Παραπομπή Chicago Style

Ash, Avner, και Avner; Gross Ash. Fearless Symmetry: Exposing the Hidden Patterns of Numbers. Princeton: Princeton University Press, 2006.

Παραπομπή MLA

Ash, Avner, και Avner; Gross Ash. Fearless Symmetry: Exposing the Hidden Patterns of Numbers. Princeton University Press, 2006.