Citazione Stile APA (7a Edizione)

Prékopa, A., Prékopa, A., & Molnár, E. Non-Euclidean Geometries: János Bolyai memorial volume. Springer US : Springer e-books.

Citazione stile Chigago Style (17a edizione)

Prékopa, András, András Prékopa, e Emil Molnár. Non-Euclidean Geometries: János Bolyai Memorial Volume. Boston, MA: Springer US : Springer e-books.

Citatione MLA (8a ed.)

Prékopa, András, et al. Non-Euclidean Geometries: János Bolyai Memorial Volume. Springer US : Springer e-books.